Hydrogen is used in the chemical industry to synthesize ammonia and in the hydrogenation of vegetable and animal oils and fats.
氢在化学工业中用于合成氨和蔬菜、动物油和脂肪的氢化作用。
Hydrogen is used in the chemical industry to synthesize ammonia and in the hydrogenation of vegetable and animal oils and fats.
氢在化学工业中用于合成氨和蔬菜、动物油和脂肪的氢化作用。
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