“keyseat reamer”的概念、定义、翻译、参考文献-科学参考

单词	keyseat reamer
释义	keyseat reamer Encyclopedia 工学井下工具释 keyseat reamer键槽扩大器连接于钻铤上方，用于破坏井身键槽，使钻铤免于键槽卡钻的装置。又称键槽破坏器。
随便看	grass skiing field grass snake grass swale grass tetany grasstoots committee of Chinese Communist Youth League grass variety Grass Variety Approval Committee of China grass variety degradation grass variety selection grass variety stability grass variety uniformity grass weed grassy weed grate grate discharge ball mill grated－bottom intake grate-kiln pelletizing process graticle graticule Gratien Lazare Pognon grating grating array grating constant grating device grating diffraction measurement

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