这个退出值不是0(零)，如main函数中所返回的。

The exit value is not 0 (zero), as returned in function main.

youdao

清单 20 中的函数返回矢量的矢量，这是因为每个文档都可能生成零到多个映射条目，而每个映射条目都被表示为一个矢量。

The function in Listing 20 returns a vector of vectors. This is because each document could generate zero to many map entries, and each map entry is represented as a vector.

youdao

对于实际的缓冲区处理，函数只需直接返回，就能够很好地处理大小为零的缓冲区。

For the actual buffer processing, the function is perfectly capable of handling zero-sized buffers by simply returning.

youdao

The highest probability now is going to be along the x-axis, so that means we're going to have a positive wave function every place where x is positive.

概率最高的地方是沿着ｘ轴，这意味着只要在ｘ,大于零的地方波函数都是正的。

麻省理工公开课 - 化学原理课程节选

It's not going to be zero this time because we have non zero heat exchange between the system and the environment, right.?

热力学量，但是现在让我们看一下,我们的特殊函数，这次它不会是零,因为系统与外界的热量交换并不是零，对吧？

麻省理工公开课 - 热力学与动力学课程节选

It's going to be positive in terms of its wave function or in terms of its phase anywhere where y is positive.

只要ｙ大于零它的波函数,或者说是相位为正。

麻省理工公开课 - 化学原理课程节选