英语语法分析

Locally dolomite and anhydrite are important as cements, together with minor authigenic quartz.

在局部地方白云石和硬石膏也是重要的胶结物；还有少量自生石英。

In this paper, effect of anhydrite calcined at different temperatures on the hydration of Portland cement is studied.

研究了不同温度煅烧的硬石膏对硅酸盐水泥水化过程的影响。

Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble.

高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。