1.
joint gasket- or packing- type, of laminated metal foil

层压金属箔密封或填密封式接合衬垫
2.
contained marine disposa

在海里作密封式的弃置
3.
closed aqueduct system

密封式输水管道系统
4.
oil sealed rotary vacuum pump

油密封式旋转真空泵
5.
hermetically-sealed frerigerating compressor unit

密封式制冷压缩机组
6.
sealed construction

密封式结构 -继电器
7.
It has two stem sealing: one is stuffing box and another is toroidal sealing ring( O-ring).
本阀阀杆密封分为两种形式:一为填料密封;一为O型密封环密封。
8.
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。
9.
mechanical seal with low back pressure

背面低压式机械密封
10.
blowout preventer of three stage packer type

三段密封器式防喷器
11.
combined labyrinth and crabon gland

迷宫和碳精组合式密封
12.
pressure balanced bearing seal

压力平衡式轴承密封
13.
non-contact sealed ball bearing

非接触式密封球轴承
14.
spring rotating machanical seal

弹簧旋转式机械密封
15.
spring standing machanical seal

弹簧静止式机械密封
16.
oiled sealed waterless gasholder

上油密封干式煤气柜
17.
hydrodynamic mechanical seal

流体动压式机械密封
18.
hydrostatic mechanical seal

流体静压式机械密封