英语词汇“roche alum”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	roche alum
释义	WordReference Random House Unabridged Dictionary of American English © 2024 roche′ al′um (rōch),USA pronunciation [Chem.] Chemistryan alumlike substance derived from alunite. 1400–50; roche cliff, rocky height (now obsolete), late Middle English (see rock¹); apparently partial translation of Middle French alum en roque, alun de roche
随便看	timed-release time exposure time-exposure time frame time-honored time-honoured time immemorial timekeeper timekeeping time killer time-lag time lamp time-lapse time-lapse photography timeless timelessly timelessness time limit time line timeline timeliness time loan time lock timely time machine

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