还有一个和左墙一样长、齐腰高的水泥水槽，里面装满了水和死蚊子。
There was also, running the length of the left wall, a giant waist-high cement trough filled with water and dead mosquitoes.
采用了工业化的不饱和聚醚多元醇为反应单体，合成了一种高减水率，长缓凝时间的新型聚羧酸系高效减水剂。
A kind of unsaturated polyether was adopted as the reactive monomer, synthesis a new type of polycarboxylate superplasticizer with high dispersibility and long retention characters.
DSZ - A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
Water shutoff agent DSZ-A is composed of inorganic particle. Its specialities are low cost, easily flow, high strength and long valid period.
DSZ - A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
Water shutoff agent DSZ-A is composed of inorganic particle. Its specialities are low cost, easily flow, high strength and long valid period.
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