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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,酸为催化剂,研究苯与多乙苯的烷反应,多乙苯主要是二乙苯和三乙苯。

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frost heave, frost heaving, Frostbelt, frostbird, frostbite, frostbiter, frostbiting, frostbitten, frostbound, frostbow,

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3G, 401(K), a,

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英语短文

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.

现代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、揉捏、晒干、渥灭菌和干燥。

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frostline, frost-proof, frost-rib, frostrok, frost-shed, frostweed, frostwork, frosty, frosty-zone, frotation,

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3G, 401(K), a,
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