?不等直径的
...decreasing depth thread ;decreasingdepth thread ;reducing depth thread ;reducingdepth thread 不等直径的 anisodiametrial 不等螺距 decreasing worm pitch ;decreasing wormpitch ;variable distance along helical channel ..
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。