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通過不溶的三乙胺鹽的形成,用纖維素的鄰苯二甲酸 半 酯可以觀察到此現(xiàn)象.This was observed with phthalic half - ester of cellulose due to formation of an insoluble triethylamine salt....

“不溶的”的英語(yǔ)可以翻譯為：indissoluble，infusible，undissolved，insoluble ...