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无线电探空仪可以自由地上升到尽可能高的高度。
A radiosonde is free to rise to as great an elevation as possible.
youdao
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液体由于没有自由移动的电子因而是电的不良导体。
Liquids, which contain no free electrons, are poor conductor of electricity.
youdao
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液体由于没有自由移动的电子因而是电的不良导体。
Liquids, which contain no free electrons, are poor conductor of electricity.
youdao