求翻译：施工中采用高效减水剂，以减少水泥用量，提高混凝土和易性。外加剂掺量由试验确定，使用前经试验室做试验，同时在施工中严格的控制掺入量。减水剂应专库存放，不能直接存放于施工现场。是什么意思？

Superplasticizer used in the construction, in order to reduce the amount of cement to improve workability of concrete. Admixture content determined by the test before use to do laboratory tests, and strict control in the construction of incorporation. Superplasticizer should be release of the invent

Application of efficient reduction in construction, in order to reduce water-cement consumption, improve concrete and vulnerable. Additive mixed with volume determined by testing before use, the laboratory experiments, and at the same time during the construction, the strict control of volume mixing

In the construction uses the highly effective water reducing agent, reduces the cement content, enhances the concrete workability.The admixture mixes the quantity by the experimental determination, before the use performs the experiment after the test chamber, simultaneously the strict control mixes

High range water reducing agent used in construction, to decrease cement consumption, improving the workability of concrete. Additive amount determined by test, using laboratory test before, strict volume control mixed with both in construction. Reducing agent should inventory cannot be deposited di

Superplasticizer used in the construction, in order to reduce the amount of cement to improve workability of concrete. Admixture content determined by the test before use to do laboratory tests, and strict control in the construction of incorporation. Superplasticizer should be release of the invent