Both ammonium-oxidizing and denitrifying reaction in MBR accord to zero-grade reaction formula, and the corresponding degradation rate constant was 2.2 and 2.5 times respectively over CAS.

MBR系统中污泥的亚硝化、反硝化作用均呈零级反应，对应降解速率常数分别约为传统活性污泥的2.2倍和2.5倍；

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Thus rational formula and proper reaction condition were obtained.

得出合理的配方及适宜的反应条件。

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Technological process and formula of the coating is presented and effects of reaction temperature on coating performance discussed.

介绍了该涂料的生产工艺和配方，讨论了反应温度对其性能的影响。

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For some infants, a milk allergy can't be missed - as soon as the baby has infant formula he develops hives and swelling, but for others the reaction is delayed and causes chronic symptoms.

BBC: Children with allergies 'being let down'