| |||
J/SCR=jack screw | |||
jackscrew | |||
milling jack | |||
screw block; screw lifter | |||
ejector screw | |||
screw jack | |||
jacking screw | |||
jacking block; lifting screw | |||
jack screw | |||
screwjack | |||
| |||
jack screw; screw jack | |||
| |||
screw jack | |||
| |||
jack-in-the-box; screw jack | |||
| |||
jack-in-the-box | |||
| |||
screw-type jack | |||
| |||
screw jack |
螺旋 千斤顶: 12 phrases in 5 subjects |
Automobiles | 3 |
Mountaineering | 1 |
Shipbuilding | 1 |
Space | 1 |
Technology | 6 |