| 释义 |
derrick bitt
- derringern. 〈美〉大口径短口手枪
- trackballn. 跟踪球
- 缆柱lǎn zhù
bitt
- 井架jǐng jià
derrick
- 钻油塔zuàn yóu tǎ
oil derrick
- 系船柱xì chuán zhù
bollard; dolphin; bitt
- 架式钢卷尺jià shì gāng juàn chǐ
derrick type steel tapes
- 起重机qǐ zhòng jī
chain block, crane, derrick, hoist, lift
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