OBJECTIVE: to probe into the functional and pathological changes of the lung tissues after bullet wound.

目的：探讨枪伤后犬肺脏组织的功能和病理学的改变。

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One mission, called Deep Impact, will probe the interior of a comet by shooting a 770-pound (350-kilogram) copper bullet through its heart.

一项称之为“深度影响”的任务是通过将一个770磅(350公斤)的铜弹射人慧星的心脏来探测慧星内部的结构。

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One mission, called Deep Impact, will probe the interior of a comet by shooting a 770-pound (350-kilogram) copper bullet through its heart.

一项称之为“深度影响”的任务是通过将一个770磅(350公斤)的铜弹射人慧星的心脏来探测慧星内部的结构。

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