齿轮齿廓上的渐开线在( )上的压力角、曲率半径最小。 A. 齿顶圆 B. 基圆 C.分度圆 D.齿根圆
A.
A
B.
B
C.
C
D.
D
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】A. Don’t follow too closely B. Keep distance C. Accident area D. Road closed E. Road work ahead F. Two-way traffic G. One-way traffic H. Bend ahead I. Bus lane J. Electronic toll collection(ETC) K. Se...
【简答题】A — Don ’ t follow too closely. J— Electronic toll collection (ETC) B— Keep distance K— Service area C— Accident area L— No passing D— Road closed M— No parking E— Road work ahead N— Dead end F— Two-w...