1.
bellows sealed gate valve
波纹管密封的闸板阀
2.
bellows seal bonnet
波纹管密封型上阀盖
3.
overshot tubing seal divider
打捞筒油管密封分压器
4.
closed aqueduct system
密封式输水管道系统
5.
epoxy enclosed transistor
环氧树脂密封晶体管
6.
lighthouse valve, sealed-disc
灯塔电子管, 密封圆盘的
7.
metal bellows mechanical seal
金属波纹管机械密封
8.
rubber bellows mechanical seal
橡胶波纹管机械密封
9.
DSS tubing joint
双密封专用油管接头
10.
FLEXIBLE CONDUIT WITH EX(d).PACKING GLAND
防爆密封接头挠性管
11.
EX(d). PACKING GLAND FOR CONNECTING PIPE
接管式防爆密封接头
12.
FLEXIBLE CONDUIT WITH WATER-PROOF PACKING GLAND
防水密封接头挠性管
13.
WATER-PROOF PACKING GLAND FOR CONNECTING PIPE
接管式防水密封接头
14.
The tube is sealed at both ends.
这管子两端是密封的。
15.
Taper type hanger and straight type hanger are available for tubing head.
油管挂的密封形式有非金属密封(图一)金属密封(图二)种形式。
16.
Sealed with the Burgmann MG1 elastomer bellows mechanical seal.
其密封选用博格曼MG1橡胶波纹管机械密封。
17.
safe custody
保管(文件、财物密封后交银行保管)
18.
Development of E-Shaped Double-Sided Active Sealing Flange Seal Ring for the Braking Pipeline System
制动管系用E形双面主动密封法兰密封圈的研制