The drag-reducing property of the compounding system was decreased obviously when they were used at low temperature.

另外，输气温度对减阻效果影响较大，低温时减阻率明显降低。

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Aminobenzenesulfonic acid super-plasticizer is selected though cement paste test, which be provided with high water-reducing property, low slump loss and good compatibility with cement.

通过水泥净浆试验比较选择了减水率高、坍落度损失小、与水泥适应性好的氨基苯磺酸盐高效减水剂；

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Tests indicate that the product of the invention has certain water reducing property and higher water reducing efficiency to cement, and the highest water reducing rate can reach over 20%.

测试表明本发明产品具有一定的减水性能，对水泥减水效率较高，最高减水率可高达20％以上。

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These are aimed at reducing property prices to reasonable levels.

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The contractors running the island's installations have become more efficient, reducing payrolls and property usage.

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Adherence to safe practices is mandatory, greatly reducing risk to life, property, and the environment.

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