A study on the effect of sludge loading on filamentous sludge bulking in SBR is described in this paper.

在严格控制s BR工艺试验运行条件下，就污泥负荷对丝状菌污泥膨胀的影响规律进行了研究。

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The paper makes a study on the effect of some factors in determining diacetyl with Voges-proskavr test, and makes the method more perfect.

本文对利用肌酸比色法测定双乙酰过程中的若干影响因素进行了研究，进一步完善了此测定方法。

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The paper makes a study on the effect of temperature, depth of operation waters and hauling speed on the harvesting survival rate of yellow porgy.

本文就温度、作业海域的深度、起网速度对黄鲷采捕成活率的影响进行了研究。

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Britain's Treasury recently commissioned a study on the effect of high-frequency traders on markets.

ECONOMIST: The post mortem into the stockmarket slide of May 6th

The people in the study were part of a larger study on the effect of diet and lifestyle on cancer risk.

CNN: Daily chocolate may keep the heart doctor away

The estate had claimed the council had not carried out a full study of the effect on the stone curlew, which nests on the ground in the area.

BBC: Thetford development stone curlew challenge rejected