安装安全带扣并用紧固螺钉固定。
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。
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.
其旋风盖与桶体螺钉连接或卡扣连接。
The helical cover is connected with the screws on the body or the block buttons.
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