The use of specific synthetic polymers as oil well cement filtrate reducer has recently drawn a wide attention in industry.
目前在油井水泥降失水剂领域，合成聚合物降失水剂再度成为研究的热点和重点。
2
Synthetic diamond grinding wheels are mainly used in the grinding of hard-brittle materials, such as cement pipe and so on.
人造金刚石磨轮主要用于磨加工各种水泥管、电熔砖等硬材料及制件。
3
In the cement composite, a hardened cement product is coated with a substance block agent composed chiefly of an aqueous dispersion of synthetic resin, a swelling clay mineral and a pigment.