Never microwave egg in the shell.

勿将带壳的鸡蛋放入微波炉内加热。

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The shell surrounding the egg has many important functions.

包着蛋的外壳有很多重要功能。

《柯林斯英汉双解大词典》

Egg shell: Egg shell has little nutritional value. It is just a build up of a calcium compound.

蛋壳：蛋壳含有很少的营养价值，是由钙的化合物构成。

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So if you think of a shell, you can actually just think of an egg shell, that's probably the easiest way to think of it, where the yolk, if you really maybe make it a lot smaller might be the nucleus.

可以把它想成，个蛋壳，这也许是，最简单的思考办法,蛋黄如果，缩小非常多倍的话,就可以想象成核子。

麻省理工公开课 - 化学原理课程节选

Think of it as that egg shell part.

我们可以。

麻省理工公开课 - 化学原理课程节选

Any feces on the exterior of an egg shell poses a food safety threat from potential cross-contamination if, say, a consumer cracks open an egg then proceeds to prepare a salad with those same bacteria-riddled hands.

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With only the genetic material from the person to be cloned inside the shell of the egg, the cell would be jolted with electricity to activate cell division.

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The red dirt gave way to smooth, egg-shell-white sand.

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