刀触点轨迹投影线
projected trace of cutter contact
星下点轨迹投影
projection of ground track
动作轨迹影片研究
chronocyclegraph technique
包络-轨迹法修正齿形
Envelope-path method to corrrct the tooth profile
包络—轨迹法修正齿形
Correction of tooth progil by envelope-Path method
负碳轨迹
negative carbon footprint
2阶轨迹灵敏度
second-order trajectory sensitivity
3维裂纹扩展轨迹
three dimensional crack growth trajectory
4D轨迹
Four-Dimensional trajectory