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

单词	coal mining industry
释义	coal mining industry短语¹⁴⁴⁹⁷²⁺² 基本例句煤炭产业 The paper introduces the present condition, application, technical parameter and trend about the umbrella drill in the coal mining industry of our country. 介绍了我国煤矿伞钻现状、使用效果、技术参数和发展趋势。 chemyq
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