jack lift point 起重器支承点
jack lift operator 千斤顶升降机操作员
jack lift method 顶举法
lift jack 提升油缸 ; 升降机斤顶
hand lift jack 手动千斤顶
high-lift jack 我们用举升千斤顶
rim lift jack 轮辋起重机
high lift jack 高升程千斤顶
Job security: electric jack has lift the self-locking protection device that, when beyond top heave range will automatically stop lifting, safe and reliable.
工作安全：电动千斤顶具有升降自锁的保护装置，当超出顶举范围时将自动停止升降，安全可靠。
This kind of hydraulic system applies to hydraulic lift machines, snow wipe machine, mower, Jack, the bike with battery and automobile.
这种适用于液压系统的液压升降台，积雪清除机，割草机，杰克，自行车和汽车用电池。
You need a jack to lift the car before repairing it.
修汽车前，你得用千斤顶把汽车抬起来。
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