... attachment optical system 辅助光学系统 attachment screw 装合螺钉，连接螺钉 attack (1)迎角，冲角，攻角(2)化学浸蚀，起化学反应 ...
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定位螺钉 ansatzschraube; attachment screw; dog screw; fixing screw; keeper; locating sc ..
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attachment t screw 止动螺栓
The drawback to this design is that gas leakage can potentially occur through the attachment screw holes.
的弊端，这个设计是气体泄漏可能发生的通过实习螺丝孔。
Because there is no need for snap-fit to add additional parts as well as it can be easily assembled that it is gradually displacing screw to be the most important attachment in several situations.
卡扣连接是装配中重要的连接形式，因其不需要增加额外零件和装配简单等优点在诸多场合正逐渐取代螺钉成为最主要的连接方法。
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