英语词汇“hand cleaning, hand picking”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	hand cleaning, hand picking
释义	hand cleaning, hand picking 手选; 利用煤和杂质在颜色、光泽、外形及密度上的差别，用人工对大块矸石进行分选的选煤方法。
随便看	photo growth reaction photogrpahic zenith tube photogrph amplifier photogs photoguide photoguides photogun photogyration photohadronic photohalid photohalida photohalide photo-Hall effect photohalogenation photohalogenosubstitution photohapten photohardening photo hardening photo-hardening photo head photohead photo head plotter photoheated photoheating photohelic gauge

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