传送器可以是齿条和小齿轮机构或螺纹装置。
The translator can be a rack and pinion setup or can be a thread arrangement.
本发明提供了一种具有齿条和小齿轮调整机构的颈圈。
The present invention provides a cervical collar with a rack and pinion adjustment mechanism.
用于内径叶片围带的齿条和小齿轮可变叶片同步机构。
Rack and pinion variable van synchronizing mechanism for inner diameter vane shroud.
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