jacking screw jack-screw screw jack的意思|示意
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千斤顶螺丝千斤顶
jacking screw jack-screw screw jack的网络常见释义
螺旋千斤顶 ... jack-screw screw jack 起重螺旋 jacking screw jack-screw screw jack 螺旋千斤顶 power-driven screw-jack set 电动螺旋起重机组 ...