英语词汇“enrichment zone of coal”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	enrichment zone of coal
释义	enrichment zone of coal 富煤带；煤田或煤产地内煤层相对富集的地带。用煤层厚度表示。
随便看	rocket tester rocket test facility rocket thrower rocket thrust rocket thrust chamber rocket thrust test bed rocket to rocket torpedo rocket towing explosive device rocket towting explosive device rocket train rocket trajectories rocket trajectory rocket troops rocketts rocket tube rocket turbine rocket turbopump assembly rocket-type cooling bed rocket type of star rocket unexpectedly rocket unit rocket up rocket vehicle rocket voyage to the moon