Which do hydraulic jack's overhaul matters needing attention have? The hydraulic jack is the double-acting plunger type.

液压千斤顶的检修注意事项有哪些？液压千斤顶均为双作用活塞式。

youdao

And Jack Riley is acting director of the Rand Corporation's Center on Quality Policing.

NPR: Shooting Strains Police-Community Ties in NYC

It's not surprising that such an atmospheric club has made numerous celluloid appearances, from being blown up in James Caan's Thief to acting as John Cusack and Jack Black's hangout in High Fidelity.

BBC: Chicago��s celluloid city

Labour's Jack Dromey, whose wife Harriet Harman is acting Labour leader, said his constituents were more concerned about their jobs than ID cards.

BBC: Blunkett admits that ID cards project is 'dead'