The material choice, moulding method, joint principle and shape design of hinge joint, hasp joint, clamp joint and press fit joint of normal plastics were introduced.

介绍常用塑料铰链联接、搭扣联接、卡夹联接、压力装配联接的联接件材料选择、成型方法、联接原理、形状设计等。

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Fit universal joint on the steering gear.

安装转向机上的万向节。

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Fit the rig tongs with the correct jaws for the drill pipe tool joint or the drill collar. Re-install the safety lock springs.

给大钳装上与钻杆接头或钻铤相匹配的钳头，再装上安全锁簧。

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"You just have to be physically fit with no history of joint issues, any one who can move really, " he said.

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Skipper Robert Howley, battered and bruised following the Ireland defeat, has been declared fully fit, and fly-half Neil Jenkins will win his 62nd cap, moving alongside Gareth Llewellyn as joint-second on Wales' all-time list.

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