Best of all, this shell code is portable.

最妙的是，这个shell代码是可移植的。

youdao

dsh: This shell can run a shell command on many machines in parallel.

dsh：这个 shell 可以并行地在许多计算机上执行 shell 命令。

youdao

This shell allows you to execute Ruby commands and experiment with the language in real time.

这个shell允许您执行Ruby命令，并实时试用该语言。

youdao

And, this outermost shell is termed the valence shell.

这个最外层被称作价电子层。

麻省理工公开课 - 固态化学导论课程节选

So, let's take a look at one of these rows in more detail to think about why this might be happening, and it turns out the reason that these glitches occur are because the sub shell structure predominates in certain instances, and that's where these glitches take place.

那么，让我们仔细地看一看其中一行,想一想为什么会这样，结果是这些小偏差的出现,是因为在一定情况下,亚壳层结构会产生重要影响，这正发生在小偏差出现的地方。

麻省理工公开课 - 化学原理课程节选

This is the shell model.

这就是核壳模型。

麻省理工公开课 - 固态化学导论课程节选

But no hint of the cathedral-like, entrance hall and interior can be gleaned from this shell.

ECONOMIST: New room for readers

All well and good, one might say, looking around this shell of a city, but Kapakov believes in an odd way Hurricane Katrina has improved the chances of a project like his.

NPR: Shifting Visions of a Rebuilt New Orleans

This shell game never smelled right to me.

CNN: Obama's immigration policy a shell game