以上来源于: WordNet
It provides a protective covering for the engine, passengers, and cargo.
车身为发动机,乘客和货物提供了一个防护罩。
And they found that the protective covering is actually only 6 nanometers thick.
他们发现,保护层其实只有6纳米厚。
The iPod touch does this using a layer of capacitive material under a protective covering.
iPod touch依靠位于保护膜之下的一层电容材料来达成上述功能。
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