?啮合面
... gearing efficiency 齿轮传动效率 gearing face 啮合面 gearing loss 齿轮传动损失 ...
硬齿面齿轮装置
The watch survived, though the white enamel face turned black and the metal gearing softened so that it no longer ticked.
FORBES: Magazine Article
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。