| 词汇 | pump rod |
| 释义 | Definition of pump rod in English:pump rodnoun ˈpʌmp ˌrɒd Mechanics
OriginMid 18th century. From pump + rod. Compare earlier pump-staff. Definition of pump rod in US English:pump rodnounˈpʌmp ˌrɒd Mechanics
OriginMid 18th century. From pump + rod. Compare earlier pump-staff. |
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