名词
中文翻译：微米
同义词：
['micron', 'millimeter']
例句：
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1.The microscope is used to examine small objects at a very high magnification.
显微镜用于观察非常小的对象。
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2. She measured the length of the string with her ruler and marked it on the map.
她用尺子测量了绳子的长度并在地图上做了标记。
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3. The scientist used a microscope to observe the structure of a new virus.
科学家使用显微镜观察了一种新的病毒的结构。