英语词汇“porthole glass”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	porthole glass
释义	porthole glass 观察口玻璃
随便看	direct-expansion coil direct expansion cooling direct expansion freezer direct-expansion refrigerating plant direct expansion refrigeration direct expansion refrigeration system direct expansion system direct expenditure direct expenditures direct expense direct expense cost direct expense of project direct expenses direct expenses cost direct experience direct experiment direct exploration method direct export direct export and import direct exporting direct export trade direct exporttrade direct exposure direct-exposure film direct exposure shield 白虎当头坐，无灾必有祸白虎进门，大祸临头白虹蜿蜒吐长线，渐看鳌背负山来。白蚁蛀观音，自身难保白衣登三公白豆腐也能说出血来白豆腐能说出血白豆腐说成红猪血白象身高眼也高白贲无无。参酌参院参集参鶏湯又又がし又がり又ぎき又しても又ぞろ