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chemical changes | |||
chemical transformation | |||
chemical change; chemical change (As with the chemical changes that take place in smelting iron, the reactions which produce slag are very complex. 如同炼铁时发生的化学变化一样,造渣过程的化学反应也是很复杂的。) | |||
chemical modification | |||
chemical variation |
化学变化 : 81 phrases in 21 subjects |