英语短语词组词汇ppm的音标、释义、翻译、用法及例句-英语短语词组词典

短语	ppm
释义	ppm, p.p.m., PPM abbr.parts per million 百万分之…,百万分率
随便看	excimer excimer laser excimer lasers excimers excipient excipients exciple exciples exciplex excipula Excipulaceae excipular excipule excipuliform excipulum excircle excircles excisable excise excised excise laws exciseman excisemen excises excise tax

英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。