“sinker bar”的概念、定义、翻译、参考文献-科学参考

单词	sinker bar
释义	sinker bar [`siŋ·kǝr ´bär] ^{MINING ENGINEERING} A short, heavy rod placed above the drill jars to increase the effect of the upward sliding jars in well-drilling with cable tools.
随便看	glume glumiferous Glumiflorae gluon gluonia gluside glutamate glutamic acid glutaminase glutamine glutamine synthetase glutaraldehyde glutarate glutaric acid glutathione glutelin gluten glutenin glutethimide gluteus maximus gluteus medius gluteus minimus glutinant nematocyst glutinous glycemia

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