... 操纵导阀 maneuvering pilot valve 导阀杆 pilot stem 旁通导阀 bypass pilot ...
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... pilot spring;控制弹簧 pilot stem;控制杆 pilot supply line;先导供油管路 ...
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pilot valve stem 先导阀杆
lift pilot valve stem 提升器先导阀杆
tilt pilot valve stem 倾斜先导阀杆
pilot valve push stem 先导阀顶杆
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