... gib and cotter ==> 合楔 gib and key ==> 合楔 gib arm of crane ==> 吊车臂,吊车起重扒杆 ...
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在积木拼块中，至少包括一种是多边形柱体拼 块，该拼块的每一侧边上设有可与主壳体凸棱相楔合凹槽，或设有可与主壳 体凹槽相楔合的凸棱。
At least one kind of building block is polygon prism blocks which have grooves to fit for the protrusive arris or have grooves to fit for protrusive arris on the main shell body.
通过对采用平面楔合面内星轮的超越离合器的受力及摩损对其使用可靠性影响的分析 ，从而提出了用对数螺旋楔合面代替平面楔合面的设计方案 ，并对两种方案进行了比较。
So the autor proposed a new design project use logarithmic helicoid instant of planar plane of action and at the same time this two project were compared in detail.
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