Anti dispersion agent for low fluidity loss underwater concrete was prepared with soluble high molecular polymer and tests on anti dispersion and fluidity loss were carried out.
采用速溶高分子聚合物，制成低流动性损失水下混凝土用抗分散剂，并进行抗分散性、流动性损失试验。
Based on molecular design theory of polymer, a kind of low slump loss polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理，合成了一种低坍损聚羧酸系高效减水剂。
Based on molecular design theory of polymer, a kind of low slump loss comb-like polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理，合成了一种低坍损梳形聚羧酸系高效减水剂。
The pure polymer gel has low mechanical strength, but the new multi-function composite gel has high mechanical strength, which can control the down-hole loss circulation effectively.
纯粹的聚合物凝胶力学强度相对较低，而新型多功能复合凝胶的力学强度相对较高，能有效的解决井下地层漏失。
The purpose of this paper is to fabricate high quality and low-loss graded-index polymer optical fibers.
本文以制备质量好、传输损耗低的梯度折射率塑料光纤为目的。
The purpose of this paper is to fabricate high quality and low-loss graded-index polymer optical fibers.
本文以制备质量好、传输损耗低的梯度折射率塑料光纤为目的。
应用推荐