聯(lián)系人:楊美麗 Email:SHMXDZYML621@126.COM FX2N-128MR-001 輸入點(diǎn): 64,64 繼電器輸出FX2N-80MR-001 輸入點(diǎn): 40,40 繼電器輸出FX2N-64MR-001 輸入點(diǎn): 32,32 繼電器輸出FX2N-48MR-001 輸入點(diǎn): 24,24 繼電器輸出FX2N-32MR-001 輸入點(diǎn): 16,16 繼電器輸出FX2N-16MR-001 輸入點(diǎn): 8,8 繼電器輸出FX2N-80MR-D 輸入點(diǎn): 40,40 繼電器輸出 (直流供電)FX2N-64MR-D 輸入點(diǎn): 32,32 繼電器輸出 (直流供電)FX2N-48MR-D 輸入點(diǎn): 24,24 繼電器輸出 (直流供電)FX2N-32MR-D 輸入點(diǎn): 16,16 繼電器輸出 (直流供電)FX2N-128MT-001 輸入點(diǎn): 64,64點(diǎn)晶體管輸出FX2N-80MT-001 輸入點(diǎn): 40,40點(diǎn)晶體管輸出FX2N-64MT-001 輸入點(diǎn): 32,32點(diǎn)晶體管輸出FX2N-48MT-001 輸入點(diǎn): 24,24點(diǎn)晶體管輸出FX2N-32MT-001 輸入點(diǎn): 16,16點(diǎn)晶體管輸出FX2N-16MT-001 輸入點(diǎn): 8,8點(diǎn)晶體管輸出FX2N-80MT-D 輸入點(diǎn): 40,40點(diǎn)晶體管輸出 (直流供電)FX2N-64MT-D 輸入點(diǎn): 32,32點(diǎn)晶體管輸出 (直流供電)FX2N-48MT-D 輸入點(diǎn): 24,24點(diǎn)晶體管輸出 (直流供電)FX2N-32MT-D 輸入點(diǎn): 16,16點(diǎn)晶體管輸出 (直流供電)FX2NC-96MT 輸入點(diǎn): 48,48點(diǎn)晶體管輸出FX2NC-64MT 輸入點(diǎn): 32,32點(diǎn)晶體管輸出FX2NC-32MT 輸入點(diǎn): 16,16點(diǎn)晶體管輸出FX2NC-16MT 輸入點(diǎn): 8,8點(diǎn)晶體管輸出FX2N-48ER 輸入點(diǎn):24,24 繼電器輸出FX2N-48ET 輸入點(diǎn):24,24點(diǎn)晶體管輸出FX2N-32ER 輸入點(diǎn):16,16 繼電器輸出FX2N-32ET 輸入點(diǎn):16,16點(diǎn)晶體管輸出FX2N-16EX 輸入點(diǎn):16FX2N-16EYR 輸入點(diǎn):16 繼電器輸出FX2N-16EYT 輸入點(diǎn):16點(diǎn)晶體管輸出FX2N-8ER 輸入點(diǎn):4,4 繼電器輸出FX2N-8EX 輸入點(diǎn):8FX2N-8EYR 輸入點(diǎn):8 繼電器輸出FX2N-8EYT 輸入點(diǎn):8點(diǎn)晶體管輸出FX2NC-32EX 輸入點(diǎn):32FX2NC-32EYT 輸入點(diǎn):32點(diǎn)晶體管輸出FX2NC-16EX 輸入點(diǎn):16FX2NC-16EYT 輸入點(diǎn):16點(diǎn)晶體管輸出FX2NC-16EX-T 輸入點(diǎn):16FX2NC-16EYR-T 輸入點(diǎn):8 繼電器輸出FX2N-2AD 2通道A/DFX2N-2DA 2通道D/AFX2N-2LC 2通道溫度控制FX2N-4AD 4通道A/DFX2N-4AD-PT 4通道溫度輸入,鉑金電阻FX2N-4AD-TC 4通道溫度輸入,熱電耦FX2N-4DA 4通道D/AFX2N-5A 4 通道A/D, 1通道D/AFX2N-8AD 8通道A/DFX2N-1HC 1通道高速計(jì)數(shù)FX2N-1PG-E 脈沖定位模塊(1通道-100KHz)FX2N-10GM 1軸位置控制單元FX2N-10PG 脈沖定位模塊(1通道-1MHz)FX2N-20GM 2軸位置控制單元聯(lián)系人:楊美麗 Email:SHMXDZYML621@126.COM
設(shè)備名稱:攜帶式X射線探傷機(jī)
用途:X射線探傷機(jī)適用于國(guó)防、造船、石油、化工、機(jī)械、航空航天和建筑等工業(yè)部門檢查船體、管道、高壓容器、鍋爐、飛機(jī)、車輛梁等材料、零部件加工焊接質(zhì)量,內(nèi)部缺陷以及各種輕金屬、橡膠、陶瓷等加工的質(zhì)量。
特點(diǎn): X射線發(fā)生器體積小,陰極接地,風(fēng)扇強(qiáng)迫冷卻; 重量輕,攜帶方便,操作簡(jiǎn)單; 嚴(yán)格按照1:1方式工作休息; 自動(dòng)訓(xùn)練X射線發(fā)生器,查詢曝光參數(shù); 延時(shí)啟動(dòng)高壓,保證操作者安全; 嚴(yán)格控制生產(chǎn)工藝,造型美觀,結(jié)構(gòu)合理。 技術(shù)指標(biāo):(以XXG-2505型為例) X射線管:波紋陶瓷管 管電壓:150~250KV(連續(xù)可調(diào)) 管電流:5mA 輸入:2.5KW 焦點(diǎn)尺寸:2.0×2.0mm 輻射角度:40+5° 靈敏度:優(yōu)于1.5% 底片黑度:>1.5 焦距600 mm ,曝光時(shí)間5min,雙面鉛箔增感 最大穿透能力:40mm(A3鋼)
方便簡(jiǎn)單保證您的質(zhì)量
型號(hào) | MixPlus |
振蕩方式 | 點(diǎn)觸或連續(xù)振動(dòng)(可選) |
轉(zhuǎn)動(dòng)幅度 | 回轉(zhuǎn)直徑 4.5mm |
轉(zhuǎn)速范圍 | 0-2500rmp |
平臺(tái)尺寸 | Φ76mm |
外型尺寸 | 155×108×105mm |
環(huán)境溫度 | 5~40℃ |
相對(duì)濕度 | <80% |
最大功耗 | 50W |
最大負(fù)載 | 0.5Kg |
電源 | AC220V 50HZ |
凈重 | 4Kg |
聯(lián)系人:劉超 電話:13179238092
現(xiàn)特價(jià)特價(jià)(博世rexroth)0820005151電磁換向閥原裝進(jìn)口:部分型號(hào),特價(jià)表!
訂貨號(hào) 型號(hào)R900592014 3WE10A3X/CG24N9K4R900561180 3WE6A6X/EG24N9K4R900567512 4WE 6 D6X/OFEG24N9K4R900561282 4WE 6 G6X/EG24N9K4 R900912737 4WE10D3X/CG24K4QMBG24R900589933 4WE10D3X/CG24N9K4R900564107 4WE6C6X/OFEG24N9K4R900561274 4WE6D6X/EG24N9K4R900561278 4WE6E6X/EG24N9K4R900561288 4WE6J6X/EG24N9K4R900577475 4WE6M6X/EG24N9K4R900561276 4WE6Y6X/EG24N9K4R900923971 4WEH16E7X/6EG24N9ETK4/B10R901108754 4WEH16E7X/6HG24N9ETK4/B10R900925580 4WEH16J7X/6EG24N9K4R901108814 4WEH16L7X/6HG24N9ETK4/B10R901108958 4WEH22E7X/6HG24N9ETK4/B10R901223629 4WEH22EA7X/6HG24N9K4R901108960 4WEH22J7X/6HG24N9ETK4/B100811403017 4WRBA10EA75-2X/G24K4/M-828R900927231 4WREE10E50-2X/G24K31/A1VR900907114 4WREE6E32-2X/G24K31/A1VR900926997 4WREE6WA32-2X/G24K31/A1VR900704234 4WRKE10E100L-3X/6EG24EK31/A1D3MR900727361 4WRKE16E200L-3X/6EG24EK31/A1D3MR900973371 4WRKE16E200L-3X/6EG24K31/A1D3MR900731922 4WRKE25E350L-3X/6EG24EK31/A1D3MR900973369 4WRKE25E350L-3X/6EG24K31/A1D3MR901092786 4WRKE27E500L-3X/6EG24K31/A1D3MR901131953 4WRLE25Q3-370M-3X/G24K0/A1M0811404613 4WRPEH6C4B40L-2X/G24K0/A1MR910990406 A A10VSO 10 DR /52R-PPA14N00 R910942503 A A10VSO 18 DR /31R-PPA12N00 R910903163 A A10VSO 28 DR /31R-PPA12N00 R902485421 A10VSNO63DRS /32R-VPB12N00R902436353 A10VSO100DFR1/32R-PPA12N00-S1439R902449059 A10VSO140DRS/32R-VPB22U99R910945178 A10VSO18DFR1/31R-PPA12N00R910910590 A10VSO28DFR1/31R-PPA12N00R910925060 A10VSO28DFR1/31R-PPA12N00-SO32R902452431 A10VSO71DFR1/32R-VPB22U99-S2184R902138190 A2FO125/61R-PBB05R909610688 A2FO160/61R-PBB05R902161309 A2FO160/61R-PPB05R909434168 A2FO180/61R-VBB05R902404121 A4VSO180DRG/30R-PPB13N00R902408078 A4VSO355DRG/30R-PPB13N00 A4VSO370DRG/30R-PPB13N00R910976965 AA4VSO250DRG/30R-PPB13N00R902477273 AL A10VSO 45 DFR1/31R-PPA12N00 -S1648R900505052 DB10-1-5X/200R900598998 DB10-1-5X/315R900587346 DB20-1-5X/315R900503515 DB30-1-5X/200R900593795 DB30-1-5X/315R900424246 DBDH6P1X/100R900427242 DBDH6P1X/200R900424266 DBDH6P1X/315R900424149 DBDS10K1X/200R900424150 DBDS10K1X/315R900424158 DBDS10P1X/315R900424269 DBDS20K1X/200R900424271 DBDS20K1X/315R900423724 DBDS6K1X/200R900423725 DBDS6K1X/315R900423730 DBDS6P1X/3150811402003 DBETBX-1X/180G24-37Z4MR900926054 DBW10A2-5X/315-6EG24N9K4R900923103 DBW10B1-5X/200-6EG24N9K4R900920863 DBW10B1-5X/315-6EG24N9K4R900912910 DBW10B2-5X/200-6EG24N9K4R900759045 DBW20A1-5X/200-6EG24N9K4R12R900921754 DBW20A2-5X/315-6EG24N9K4R900935659 DBW20B1-5X/200-6EG24N9K4R900920619 DBW20B1-5X/315-6EG24N9K4R900953561 DBW30A1-5X/200-6EG24N9K4R12R900479509 DR 6 DP1-5X/25YM R900466591 DR 6 DP1-5X/75YM R900450964 DR 6 DP2-5X/75YMR900598358 DR10-5-5X/200YMR900500255 DR20-4-5X/200YMR900458990 DR6DP1-5X/150YMR900481034 DR6DP1-5X/210YR900466591 DR6DP1-5X/75YMR900538019 DZ20-1-5X/315MR900507389 DZC30-1-5X/2000811402614 FESX32CA-1X/320LZ4MR901102360 HED 8 OH-2X/100K14 R901095375 HED 8 OH-2X/100K14SR901095375 HED 8 OH-2X/100K14SR901099808 HED 8 OH-2X/200K14 R901102349 HED 8 OH-2X/50K14 R901107119 HED8OH-2X/200K14ASR901107086 HED8OH-2X/50K14ASR900174374 HM13-1X/3150811405547 HM18-1X/350-V-S/V0/0R900912572 LC16A20D7X/R900912560 LC16DR40E7X/R900910270 LC25A20E7X/R900912549 LC25DB20E7X/R900912558 LC25DR20E7X/R900906337 LC32A20E7X/R900938012 LC40DB20E7X/R900912669 LFA25E-7X/CA20DQMG24F1818509347 LR32DR40E1X/R900086685 M-3SED10CK1X/350CG24N9K4R900051053 M-3SED10UK1X/350CG24N9K4R900052392 M-3SED6CK1X/350CG24N9K4R900052621 M-3SED6UK1X/350CG24N9K4R900566273 M-3SEW6C3X/420MG24N9K4R900566283 M-3SEW6U3X/420MG24N9K4R900424579 MK10G1X/VR900423343 MK8G1X/VR900345745 M-SR10KE02-1X/R900344549 M-SR10KE05-1X/R900345372 M-SR15KE05-1X/R900340979 M-SR20KE05-1X/R900344919 M-SR30KE05-1X/R900346083 M-SR8KE05-1X/ R900086164 PGF1-2X/5,0RE01VU2 R900932265 PGF2-2X/006RE01VE4R900932271 PGF2-2X/011RE01VE4R900932274 PGF2-2X/013RE01VE4R900932267 PGF2-2X/016RE01VE4R900932261 PGF2-2X/019RE01VE4R900932088 PGF3-3X/025RE07VE4R900932112 PGF3-3X/032RE07VE4R900932111 PGF3-3X/040RE07VE4R900932165 PGH4-2X/063RE07VE4 R901147125 PGH5-3X/125RE11VE4 R901147127 PGH5-3X/200RE07VE4 R900031155 PLUG-IN CONECTOR 4P Z24 SPEZR901017012 PLUG-IN CONNECTOR 4P Z14 M SW SPEZR901017022 PLUG-IN CONNECTOR 3P Z5L M12 240V SPEZR900919237 PV7-1X/06-14RA01MA0-07R900580381 PV7-1X/10-14RE01MC0-16R900534143 PV7-1X/10-20RE01MC0-08R900580382 PV7-1X/16-20RE01MC0-16R900533582 PV7-1X/16-30RE01MC0-08R900534508 PV7-1X/25-45RE01MC0-08R900580384 PV7-1X/40-45RE37MC0-16 R900931548 PVV4-1X/082RA15DMCR900931548 PVV4-1X/082RA15DMCR900420531 S10A1.0R900420537 S15A1.0R900420525 S20A1.0R900420511 S25A1.0R900420511 S25A1.0R900420519 S30A1.0R900422881 S6A1.0R900422886 S8A1.0R900358268 S8A5.0/R900443418 SL 10 PA3-4X/ R900494086 SV 6 PB1-6X/ R900483369 SV10PA1-4X/R900537344 VT11131-1X/R900020153 VT3002-1-2X/32DR900033823 VT-VSPA1-1-1X/R901280744 Z1S 10 P05-2-4X/FR901274759 Z1S10P05-1-4X/FR901086051 Z1S6P05-4X/VR900967509 Z2DB 6 VC1-4X/100 R900440565 Z2FS 6B2-4X/2QV R900523926 Z2FS10-7-3X/VR900481624 Z2FS6-2-4X/2QVR900347495 Z2S 6-1-6X/ R900347501 Z2S 6B1-6X/ R900407424 Z2S10A1-3X/R900422752 ZDB 10 VP2-4X/50V R900431678 ZDB 6 VA2-4X/50 R900507970 ZDB 6 VP1-4X/100 R900409898 ZDB 6 VP2-4X/315V R900409959 ZDB10VP2-4X/100VR900409937 ZDB10VP2-4X/200VR900409889 ZDB6VA2-4X/100VR900409854 ZDB6VB2-4X/200VR900409933 ZDB6VP2-4X/100VR900409844 ZDB6VP2-4X/200VR900409844 ZDB6VP2-4X/200VR900409847 ZDB6VP2-4X/50VR900410813 ZDR 6 DA2-4X/75Y R900410806 ZDR 6 DP1-4X/150YMR900476381 ZDR 6 DP1-4X/210YMR900409965 ZDR 6 DP1-4X/25YM R900483785 ZDR 6 DP2-4X/25YMR900460490 ZDR10DA1-5X/150YMR900410880 ZDR10DP2-5X/150YMR900410875 ZDR10DP2-5X/75YMR900431999 ZDR10DP7-5X/150YMR900476381 ZDR6DP1-4X/210YMR900409967 ZDR6DP1-4X/75YMR900483787 ZDR6DP2-4X/150YMR900483788 ZDR6DP2-4X/210YMR900483788 ZDR6DP2-4X/210YMR900483786 ZDR6DP2-4X/75YMR900567512 4WE 6 D6X/OFEG24N9K4R900420531 S 10 A1.0/0510725047 AZPN-11-025RCB20MBR900221121 2FRM 6 SB36-3X/10QMVR900221125 2FRM 6 SB36-3X/25QMVR900564519 Z2SRK6-1-1X/V/60R900424155 DBDS10P1X/100R900472470 DR6DP2-5X/25YMR900450964 DR6DP2-5X/75YMR900424579 MK10G1X/VR900423340 MK6G1X/V0532002014 DRUCKBEGR.VENTIL 50-300 BARR900423255 2FRM10-3X/25LR900420286 2FRM10-3X/50LR900205506 2FRM6B36-3X/1,5QMVR900915672 3WE6A6X/EW230N9K4R900915651 4WE10C3X/CW230N9K4R900591664 4WE10D3X/OFCG24N9K4R900588201 4WE10E3X/CG24N9K4R900597986 4WE10H3X/CG24N9K4R900503425 4WE10H3X/CW230N9K4R900598662 4WE10HA3X/CG24N9K4R900912499 4WE10HA3X/CW230N9K4R900589988 4WE10J3X/CG24N9K4R900911868 4WE10J3X/CW230N9K4R900561274 4WE6D6X/EG24N9K4R900915095 4WE6D6X/OFEW230N9K4R900561278 4WE6E6X/EG24N9K4R900912492 4WE6E6X/EW230N9K4R900549534 4WE6HA6X/EG24N9K4R900561288 4WE6J6X/EG24N9K4R900911762 4WE6J6X/EW230N9K4R900909415 4WE6Y6X/EW230N9K4R900924764 4WEH16J7X/6EW230N9ETK4/B08R900744893 4WEH22J7X/6EW230N9ETK4/B100811403017 4WRBA 10 EA75-2X/G24K4/M-828R900907114 4WREE6E32-2X/G24K31/A1VR900954674 4WRZE25EA325-7X/6EG24ETK31/A1MR910945178 A10VSO18DFR1/31R-PPA12NOOR910910590 A10VSO28DFR1/31R-PPA12N00-S032R902452707 A10VSO45DFR1/32R-VPB12N00 S2655R902452431 A A10VSO 71 DRS /32R-VPB22U99 -S2184R902436353 A10VSO100DRS/32R-VPB12N00 S1439R902449059 A A10VSO140DRS /32R-VPB22U991834484058 CONNECTION SOCKET(PLUG Z4)0811402017 DBETX-1X/180G24-8NZ4MR900500226 DR10DP2-5X/150YMR900431891 DZ6DP1-5X/75YMR900344778 M-SR25KE05-1X R900580381 PV7-1X/10-14RE01MC0-16R900534143 PV7-1X/10-20RE01MC0-08R900534508 PV7-1X/25-45RE01MC0-08R900929461 PVV2-1X/045RA15UMBR901017022 RZ5L 物料號(hào)R901017022R901017026 RZ5L 物料號(hào)R901017026R900769541 S10P05-1XR900450776 SL10GA2-4X/R900587557 SV20PA1-4X0811405144 VT-SSPA1-508-2X/V0R900459203 Z2FS16-3X/SR900457256 Z2FS16-8-3X/S2R900456783 Z2FS22-3X/SR900443176 Z2FS22-3X/S2R900481624 Z2FS6-2-4X/2QVR900439389 Z2FS6-A2-4X/2QVR900421985 Z2S10-2-3XR900328797 Z2S16-1-5X/R900432915 Z2S22-1-5X/R900457907 Z2S22A2-5X/R900433037 Z2S22B-1-5XR900437818 Z2S22B2-5X/R900347496 Z2S6-2-6X/R900347498 Z2S6A1-6XR900347501 Z2S6B1-6XR900409847 ZDB6VP2-4X/50V
耐震電接點(diǎn)壓力表具有抗介質(zhì)脈動(dòng)和沖擊載荷,耐環(huán)境振動(dòng)等特性,適用測(cè)量對(duì)銅和銅合金無腐蝕性的氣體,液體或蒸 汽等壓力。在被測(cè)壓力在設(shè)定指針以下時(shí),兩設(shè)定指針接點(diǎn)均為常閉狀態(tài);被測(cè)壓力在設(shè)定指針以上時(shí),兩設(shè)定指針接點(diǎn)均為常開狀態(tài);適用于系統(tǒng)壓力下降時(shí)起雙限報(bào)警作用,亦可作在設(shè)定壓力區(qū)間內(nèi)實(shí)現(xiàn)自動(dòng)控制用。其抗振結(jié)構(gòu)可抑制指針的抖動(dòng)、沖擊,保護(hù)接點(diǎn),使儀表指示清晰,電信號(hào)切換,工作穩(wěn)定。廣泛應(yīng)用于機(jī)械、化工、石油、冶金、電力等工業(yè)生產(chǎn)過程。技術(shù)參數(shù):
型號(hào) | YTXC-100ZQ-Z | YTXC-150ZQ-Z | YTXC-100-Z | YTXC-150-Z | YTXC-100TQ-Z | YTXC-150TQ-Z | |
結(jié)構(gòu)形式 | 軸向帶前邊 | 徑向無邊 | 徑向帶前邊 | ||||
測(cè)量范圍 MPa | -0.1-0.15;-0.1-0.3;-0.1-0.5;-0.1-0.9;-0.1-1.5;-0.1-2.4 0-0.25; 0-0.4; 0-0.6; 0-1.0; 0-1.6; 0-2.5; 0-4.0; 0-6.0; 0-10; 0-16; 0-25; 0-40; 0-60 | ||||||
精確度% | ± 1.6 | ||||||
接點(diǎn)電參數(shù) | 工作電壓 | 380VAC;220VDC | |||||
最大工作電流 | 1A | ||||||
持續(xù)電流 | 0.6A | ||||||
最大功率 (無感負(fù)載) | 20VA | ||||||
連接器 | X14K4P | 防水接線盒 | X14K4P | 防水接線盒 | X14K4P |
使用工作溫度:-25℃~55℃工作壓力上限:不大于儀表上限的2/3工作環(huán)境振動(dòng)頻率不大于25Hz,振幅不大于0.5mm儀表執(zhí)行標(biāo)準(zhǔn):Q/320211 DGH05-2004
外形尺寸:
型號(hào) | 外形尺寸mm | ||||||||||
D | D1 | D2 | D3 | A | B | C | E | d | d0 | M | |
YTXC-100-Z | 100 | 120 | 96 | / | 44 | 38 | / | 12.5 | / | / | 20×1.5 |
YTXC-100ZQ-Z | 100 | 130 | 96 | / | 42 | 33 | 34 | 8.5 | 118 | 5.6 | |
YTXC-100TQ-Z | 100 | 125 | 96 | 102 | 44 | 38 | / | 9.5 | 118 | 5.6 | |
YTXC-150-Z | 150 | 164 | 136 | / | 50 | 44 | / | 16 | / | / | |
YTXC-150ZQ-Z | 150 | 177 | 136 | / | 50 | 43 | 55 | 14 | 165 | 5.6 | |
YTXC-150TQ-Z | 150 | 177 | 136 | 144 | 50 | 44 | / | 18 | 165 | 5.6 |
接線示意圖:
使用與訂貨須知:
儀表工作環(huán)境應(yīng)無腐蝕性氣體。訂貨請(qǐng)說明名稱、型號(hào)及測(cè)量范圍。低電壓大電流時(shí)宜配用本公司生產(chǎn)的YXC型保護(hù)繼電器。
主要產(chǎn)品:一般壓力表;耐震壓力表;全不銹鋼壓力表;耐震全不銹鋼壓力表;定位型壓力表;差動(dòng)遠(yuǎn)傳壓力表;耐震型差動(dòng)遠(yuǎn)傳壓力表;電感壓力變送器;隔膜壓力表;壓力繼電器;耐震電接點(diǎn)壓力表;光電耐震電接點(diǎn)壓力表;耐震光電信號(hào)電接點(diǎn)壓力表;膜片壓力表;耐震膜片壓力表;耐腐膜片壓力表;耐腐耐震膜片壓力表;不銹鋼膜盒壓力表;膜盒壓力表;雙金屬溫度計(jì);抗振差壓表;保護(hù)繼電器;抗振電接點(diǎn)壓力表(大功率);防爆感應(yīng)接點(diǎn)壓力表;抗振感應(yīng)接點(diǎn)壓力表;控制器;感應(yīng)接點(diǎn)壓力表(帶開關(guān)放大器); 抗振電接點(diǎn)壓力表(帶保護(hù)繼電器);抗振磁敏電接點(diǎn)壓力表等系列儀表。