So that the valves can close fully some clearance is needed in the operating mechanism.
所以阀门能完全关闭，气门间隙在操作机构内是必须的。
Can be at the top, the bottom of the installation manual operating mechanism.
可在顶部、底部安装手动操作机构。
Grounded knife and its operating mechanism are installed on the frame body.
断路器架体上还设有接地刀及其操作机构。
Finally, a simple experiment proves the mechanism of the operating region map effective and feasible.
最后，通过简单的实验证明了操作域地图的可行性和有效性。
Finally, a simple experiment proves the mechanism of the operating region map effective and feasible.
最后，通过简单的实验证明了操作域地图的可行性和有效性。
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