共轭曲线 conjugate curve 范成法 generation method 定义域 definiti..
read more →滚动轴承 rolling bearing 滑动轴承 sliding bearing 弹簧 spring 制动器..
read more →前刀面 rake face 刀尖 nose of tool 前角 rake angle 后角 clearanc..
read more →发生器 generator 直流电源 DC electrical source 门电路 gate circui..
read more →三相交流电 three-phase AC 磁路 magnetic circles 变压器 transforme..
read more →