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The transalkylation of polyethylbenzene, mainly diethylbenzene and triethylbenzene, with benzene catalyzed by tungstophosphoric acid has been studied in stirred autoclave.

采用搅拌高压釜,以磷钨酸为,研究的烷基转移反应,主要是二和三

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desmin, desmine, desmitis, desmochore, desmocollinite, desmocranium, desmocyte, desmocytoma, desmodium, desmodont,

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3G, 401(K), a,

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中高级英语短

The basic processing techniques of modern Pu'er tea include seven main steps: fresh leaf picking, spreading fresh leaves for cooling, fixation, kneading, sundrying, pile fermentation, autoclaving and desiccating.

普洱茶的基本加工工艺包括七个要步骤:鲜叶采摘、铺鲜叶冷却、固定、干、渥堆、高压灭菌和干燥。

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desmoid, desmolase, desmolipase, desmology, desmolysis, desmon, Desmond, desmone, desmopathy, desmopexia,

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3G, 401(K), a,
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