Large volume waterproof concrete with C30 strength grade and seepage resistance P>25 can be mixed by adding expansion agent and reduce-water agent.

经试验表明，在砼中复合掺加膨胀剂和高效减水剂，可制得强度等级为C30，抗渗等级P＞25的大体积防水砼。

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Objective to observe the spleen index and spleen DNA content of Chinese native medicine compound prescription "FH" water agent to immunosuppressive mice caused of cyclophosphamide (cy).

目的：观察中药复方防黄水煎剂对环磷酰胺(CY)所致免疫功能低下小鼠脾脏指数及脾脏dna含量的影响。

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The all-purpose powder is a natural deodorizer, and when mixed with water makes a great scouring agent.

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Agriculture experts, including University of Tennessee extension agent David Cook, say that historically, there has been no need to water crops.

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