名词
中文翻译：水银球
同义词：
['mercury droplet', 'mercury bubble']
例句：
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1.The mercury globules in the test tube were glowing brightly.
试管中的汞球发光发亮。
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2.The mercury globules floated gently on the surface of the water.
汞球在水面上轻轻漂浮。
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3.The mercury globules were used to detect small amounts of poisonous substances.
汞球被用来检测少量有毒物质。