tall oil
柯林斯词典
1. N any of various oily liquid mixtures obtained by acidifying the liquor resulting from the treatment of wood pulp with sodium hydroxide: it contains chiefly rosin acids and fatty acids and is used in making soaps and lubricants 妥尔油; 蒸煮硫酸盐木浆副产品，用于制作肥皂和润滑油
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