Multifunctional reactors are designed for various objectives such as high volumetric yield, minimum by product production, less energy consumption and minimal impact on the environment.

多功能反应器可按不同的目的进行设计，诸如高产品产率，低副反应、低能耗和减少环境污染等。

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That too means less propylene, since it is also a by-product of petrol production.

既然丙烯也是石油工业产品的副产物，这也意味着其产量缩水。

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Some companies, it says, excuse themselves by claiming their product is simply a by-product of palm oil production - and oil is increasingly being certified.

报告说到，一些公司通过宣称自己的产品只是一种棕榈油的副产品而为自己找借口-而油正加速被认证。

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The highly alkaline substance is a by-product of aluminium production and has a caustic effect on the skin.

BBC: Hungary builds wall to slow possible new sludge wave

Over half of them involve reducing emissions of trifluoromethane, a by-product of refrigerant and Teflon production and an especially nasty greenhouse gas.

ECONOMIST: Climate change

Heat maps highlighting concentrations of the new-to-the-brand consumer targets can be used to determine product production and distribution strategies by the client (taking it beyond the campaign).

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