名词
中文翻译：黑色碱
同义词：
['black alkaline earth', 'black alkali earth']
例句：
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1. The blackalkali reacts violently with water.
这种黑色碱与水反应剧烈。
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2.The black alkali was used to clean the windows in the factory.
这种黑色碱被用来清洗工厂的窗户。
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3.The black alkali is often used as a preservative in paints and coatings.
这种黑色碱常用于油漆和涂层中作为防腐剂。