A newly developed pipeline plug is composed of a central pipe, balloon, piston, spring, clamp, backplate, inside and outside joints, connecting plate and a wedge key.

开发的新型管道封堵器由中心管、气囊、活塞、弹簧、夹板、护板、内接头、外接头、连接板和楔键等组成。

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Metal loop (usually aluminum) with a spring-loaded gate on one side used for connecting various parts of a climbing system.

一侧有弹簧门的金属环状物(通常为铝)，用于连接攀登系统的各部分。

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The transition pedal mechanism comprises a transition pedal, a gas spring, a cross rod, a connecting rod, and an upper and a lower sleeves of a movable rod.

所述过渡踏板机构包括过渡踏板、气弹簧、横杆、连接杆以及相互套接的活动杆上套管和下套管；

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This spring 6, 000 bookings were lost when Air Canada sold a feeder airline and there were no more connecting flights.

ECONOMIST: Spirit of 1998