摘要
对极位夹角定义提出了疑问,并提出了修改意见。
This papaer inquires into the definition of angle between two limit places and gives a new definition of its.
出处
《机械科学与技术》
CSCD
北大核心
1998年第5期789-789,792,共2页
Mechanical Science and Technology for Aerospace Engineering
关键词
极位夹角
行程速度
变化系数
四杆机构
The angle between two limit places The coefficient of speed change about travel