这一项很小是很好的，因为实际上必须是零。

Well, there you can see it. Sure better have gotten small because in fact it has to be zero.

youdao

这指定调用此方法的次数必须是零次或一次。

This says the method must be called between 0 and 1 times.

youdao

对于计数型数据的抽样，接收准则必须是零缺陷(参见8.2.3.1)。

For attribute data sampling, acceptance criteria shall be zero defects see 8.2.3.1.

youdao

Well, there you can see it. Sure better have gotten small because in fact it has to be zero.

这一项很小是很好的,因为实际上必须是零。

麻省理工公开课 - 热力学与动力学课程节选

In other words, T surrounding dS has to be greater than zero, and of course temperature is always positive.

换句话说这就意味着，环境温度T乘以dS必须大于零，当然环境温度T是正的。

麻省理工公开课 - 热力学与动力学课程节选