名词
中文翻译：莫尔包
同义词：
['Mohr envelope', 'Mohr box']
例句：
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1.The Mohr envelope is a container used to contain and protect fragile objects.
莫尔信封是一种用来容纳和保护易碎物品的容器。
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2. During the test, the student kept his Mohr envelope closed.
在考试期间，学生把莫尔信封紧紧封好。
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3. The Mohr envelope was designed to provide extra security during transit.
莫尔信封被设计来提供运输过程中额外的安全性。