ball bearing
noun [ C ] uk/ˌbɔːl ˈbeə.rɪŋ/ us/ˌbɑːl ˈber.ɪŋ/
滚珠；滚珠轴承
a small metal ball or several of these arranged in a ring to make particular parts of a machine move more easily
| 单词 | ball bearing |
| 释义 | ball bearing noun [ C ] uk/ˌbɔːl ˈbeə.rɪŋ/ us/ˌbɑːl ˈber.ɪŋ/ 滚珠；滚珠轴承 a small metal ball or several of these arranged in a ring to make particular parts of a machine move more easily |
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