controllable pitch proper的意思|示意
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可控螺距固有
controllable pitch proper的网络常见释义
可变螺距螺旋桨 ... controllable pitch propeller 可控螺距螺旋桨 controllable pitch proper 可变螺距螺旋桨 controllable pitch screw 可调螺距螺旋桨 ...