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Through IR analysis, the main component in group II was identified as dialkyl-benzene, while in Group III was monoalkyl-benzene as well as dialkyl-tetralin and indane (DTI).

然后用紫外法求得了分中邻、二烷基与对二烷基的质量比约为1∶409。

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backflash, backflip, backflooding, backflow, backflush, back-fold, back-folding, backform, backformation, back-formation,

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3G, 401(K), a,

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I recently presented the prizes in the e-commerce awards which are supported by the DTI through our UK Online for Business Project.

我最近通过英国线服项目领取了由英国贸工部支持的电奖励。

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backhand, backhand stroke, backhanded, backhander, backhaul, backheating, backhoe, backhouse, backing, backing-off,

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3G, 401(K), a,
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