英语词汇“drop ball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	drop ball
释义	drop ball drop ball [′dräp ‚bȯl] (engineering) A ball, weighing 3000-4000 pounds (1400-1800 kilograms), dropped from a crane through about 20-33 feet (6-10 meters) onto oversize quarry stones left after blasting; this method is used to avoid secondary blasting.
随便看	federation of the royal colleges of physicians of the uk federation of the soviet socialist republics federation of the west indies federation of the young european greens federation of thrift and credit cooperative societies federation of touring and automobile clubs federation of tourism association of nigeria federation of tourism industries of the philippines federation of tour operators federation of trade and labor unions federation of trade unions federation of trade unions-burma federation of trade unions of ukraine federation of tribes federation of uae chambers of commerce and industry federation of uganda football associations federation of underwater activities malta federation of unified school employees federation of union representatives federation of united concert series federation of united nations staff associations federation of united states teachers and adjudicators federation of universities senior staff association of ghana federation of university conservative and unionist associations federation of vehicle industry unions

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。