英语词汇“roller jewel”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	roller jewel
释义	roller jewel noun : a usually ruby or sapphire pin set upright in the roller disk and pushed by the pallet fork — called also impulse pin
随便看	piloting piloting pilotism pilot jack pilot ladder pilot lamp pilotless pilot light pilot method pilot motor pilot nut pilot officer pilot pin pilot plow pilotry pilots pilot's pilotship pilot's luff pilot snake pilot train pilot truck pilot valve pilotweed pilot whale

英语词典包含332784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。