Use of concrete pumping construction, pipeline installation to be straight and flat pad.
砼采用泵送施工，管道安装要顺直，并垫平。
The compounding principle, methods and properties of concrete pumping admixture had been studied.
对混凝土泵送剂配制原理、方法及其性能进行了研究。
Under normal circumstances, concrete pumping pipe center at columnar fluid flow status was suspended.
正常情况下，混凝土在泵送管道中心形成柱状流体，呈。
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