英语词汇“double headings”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	double headings
释义	double headings double headings [¦dəb·əl ′hed·iŋz] (mining engineering) A pair of coal headings driven parallel to each other and positioned side by side about 10-20 yards (9-18 meters) apart.
随便看	air-entraining hydraulic cement air entrainment air entrainment mask air entry air entry value aireo airep air equipment and support air equipment & support air equivalent air-equivalent ionization chamber air-equivalent material airer aire river airers aires air escape airesearch turbofan 3 spool aircraft engine aires lifecycle extension aires marines protégées airespace wireless location services airet aire urbaine natation nord franche comté air europa airevac

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。