“long-pillar working”的概念、定义、翻译、参考文献-科学参考

单词	long-pillar working
释义	long-pillar working 留大煤柱开采法
随便看	apparatus for determination of ammonia apparatus for determining water retention apparatus for directional solidification apparatus for lathe centers apparatus for nitrogen examination apparatus for rapid determination of nitrogenoxide apparatus for semi-micro elementary analyzer apparatus for suspension apparatus for testing rail profile apparatus function apparatus glass apparatus insulator apparatus lacrimalis apparatus of oxygen supply apparatus of resistance apparatus porcelain sleeve apparatus respiratorius apparatus suspensorius lentis apparatus with homing position apparatus without homing position apparatus with several arm wippers apparent apparent absorption apparent activation energy apparent additional mass

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