压紧装置 battening arrangement ; pinch device ; hold down fitting ; holddown

内装式压差锁紧装置 built-in differential lock ; in differential lock

自动液压张紧装置 full automatic hydraulic tension station

紧急压力保护装置 emergency tensioning retractor

液压上紧装置 hydraulictightening device ; hydraulic efficiency tightening device

液压栓紧装置 hydraulic bolting unit

舱盖板压紧装置 cleating device ; dogging device

活塞环压紧装置 piston ring compressor

气动压紧装置 air damper

夹具压具压紧装置 hold-down