单词	Crookes tube
释义	Crookes tube noun : a vacuum tube evacuated to a pressure of about .04 mm of mercury for demonstrating the properties of cathode rays Word History Etymology after Sir Wm. Crookes
随便看	uncia unciae uncial uncialer uncialest uncialler unciallest uncially uncials unciferous unciform unciform bone unciform process unciforms unciliated uncinal uncinariases uncinariasis uncinata uncinate uncinate convolution uncinate gyrus uncinated uncinatum uncinatums

英语词典包含469781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。