retarders造句怎麼寫

Some retarders permanently weaken the concrete.

According to the condition of the point-continued speed control system, writer discusses 3 installation styles of the small retarders-group, to solve the problem of use the small retarders-group.

The preferred adsorption of retarders on different faces of gypsum crystal changes growth habit of dihydrate crystal and its crystal morphology.

Locked stop wagon retarder for high speed running is a new product, this paper mainly introduces its performance, application and the method of retarders layout.

This paper introduces the determination of amount of retarder layout of stop retarder , position and method of retarder layout and effect in application after stop retarders are installed.

Determination of water of thinners and retarders

The effecting law and action mechanism of retarders on hydration process of building gypsum, crystal morphology of dihydrate and pore structure have also been revealed.