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The most common unit of measure for the capacity of a dewar is the liter.
测量杜瓦瓶的容积最常用的单位是升。
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The dewar is the front end of the receiver system of the radio telescope.
杜瓦瓶是射电望远镜上接收机系统的前端。
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The dewar is the front end of the receiver system of the radio telescope.
杜瓦瓶是射电望远镜上接收机系统的前端。
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