| 词汇 | ball-bearing |
| 释义 | ball bearing noun[ C ] uk /ˌbɔːl ˈbeə.rɪŋ/ us /ˌbɑːl ˈber.ɪŋ/ a small metal ball or several of these arranged in a ring to make particular parts of a machine move more easily滚珠；滚珠轴承 pagadesign/iStock / Getty Images Plus/GettyImages Machines - parts air compressor air filter air hose axle coaster brake collector plate console guard inlet instrumentation manifold mechanism pivot rack rack and pinion slide slider soft key spline stepney Chrome steel is also hard and tough and finds use in files, ball bearings and projectiles. In this place young women were employed to sort the ball bearings which went into the machines. Q. How often should the ball bearings be oiled? The rims were so nicely adjusted with ball bearings that the smallest blow would send them spinning around, therefore a shell could not penetrate because it would glance off. They work on ball bearings. |
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