This is just your standard triple integral over a region in space.
这就是空间区域中的标准三重积分。
The problem of traditional multiple integral is insufficient of student's space graphs thought.
传统的重积分教学问题是学生空间思维的不足。
The problem of traditional multiple integral is insufficient of student's space graphs thought.
传统的重积分教学问题是学生空间思维的不足。
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