large main valve piston ring的意思|示意
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主阀大活塞环
large main valve piston ring的网络常见释义
主阀大活塞环 ... multiple-way directional control valve 多路换向控制阀 large main valve piston ring 主阀大活塞环 pilot-valve governor 导阀调节器 ...
large main valve piston ring相关短语
1、 Main valve piston large ring 主阀鞲鞴大涨圈