His model, he said, was sheathed in a black plastic shell, so he did not see its design.

他说原型机的模型被装在一个黑色的塑料外壳中，因此无法窥见其中设计。

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But because they were unable to precisely model the complex nanostructures found in the shell, the solar cell had a low conversion rate.

但是因为他们不能在外壳上准确地模拟复杂的纳米结构，因此太阳能的捕获率很低。

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This is the shell model.

这就是核壳模型。

youdao

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

Traditionally, new processors have arrived on the iPad and then, after extensive user testing, squeezed into the shell of the next model iPhone.

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The battery is located within a carbon-fibre monocoque which forms an integral part of the body shell and acts as the gullwing model's "spine".

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While Shell was once seen as a model of good management, some investors have in recent years criticised its complicated two-company structure: Royal Dutch Petroleum, based in the Netherlands, owns 60% of the group and London-based Shell Transport and Trading the remaining 40%, with operational management reporting to both boards.

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