Guide vane operation structure includes the guide vane arm clip board, guide vane arm, segmental keys, connection board, handle, cut pin, connecting rod pin and gland, etc.

导叶操作机构主要包括：导叶臂压板、导叶臂、分瓣键、连接板、耳柄、剪断销、连杆销及压盖等。

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When a back and forth handle on the boring bar is rotated, the boring bar falls back and the pin can quickly dismount the knife.

当转动机床镗杆进退手柄使镗杆向后退时，销子就可快速的把刀具卸下。

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The built-in float pin rod comprises a hard and a soft slide rod, and moves only in the hollow holding handle, the bending spring, and the hollow casing for the rod body.

内置式浮动销杆又由硬体滑杆和软体滑杆组成，浮动销杆只能在空心的握柄、弯力弹簧和空心的竿身套管内移动。

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