footpound force 英尺

footpound force wall 底帮

footpound force rope 沉子纲

footpound force rail 轨蹼

footpound force rot 腐蹄病

footpound force shear 脚踏剪床

footpound force push 脚踏按钮

footpound force space 腿脚活动空间

footpound force press 脚踏压床

footpound force valve 底阀