If we have a closed curve then the line integral for work is just zero.
如果给定一条封闭曲线，那么求所做功的线积分为零。
The method of calculating integral temperature by measured flash temperature curve was put forward.
提出了利用动态热电偶测得的齿面闪温分布曲线计算齿面积分温度的方法。
The method of calculating integral temperature by measured flash temperature curve was put forward.
提出了利用动态热电偶测得的齿面闪温分布曲线计算齿面积分温度的方法。
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