| 单词 | rapping bar |
| 释义 | Definition of rapping bar in English:rapping barnoun Founding
OriginLate 19th century; earliest use found in Lockwood's Dictionary of Mechanical Engineering. Definition of rapping bar in US English:rapping barnoun Founding
OriginLate 19th century; earliest use found in Lockwood's Dictionary of Mechanical Engineering. |
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