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alcatrão utilização n
environ.	焦油使用 (深色的、重、粘性物质或来自某些有机材料蒸馏的残留物的职业或利用，常用于生产苯、肥皂、染料、化妆品等产品。)
alcatrão n
environ.	焦油 (一个复杂的粘性材料，高分子量化合物，来自石油蒸馏或木材或煤的干馏。)

alcatrao : 1 phrase in 1 subject

Environment

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