您要查找的是不是：
- 硬石膏（CaSO4） anhydrite(CaSO4)
- 硬石膏，无水石膏一种无色，白色，灰色，蓝色或淡紫色无水硫酸钙矿物，CaSO4，出现在石膏沉积岩层中 A colorless, white, gray, blue, or lilac mineral of anhydrous calcium sulfate, CaSO4, occurring as layers in gypsum deposits.
- 硬 hard
- 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。 Locally dolomite and anhydrite are important as cements, together with minor authigenic quartz
- 石膏 plaster
- 硬的 hard
- 石膏板 plasterboard
- CaSO4 calcium sulfate
- 外源CaSO4 exogenous CaSO4
- 硬质 horniness
- CaSO4污垢 CaSO4 scale
- 硬石膏 anhydrite
- 超细CaSO4 super fine calcium sulphate
- CaSO4型卤水 CaSO4 type brine
- 硬碟 hard disk
- 石膏粉 gesso
- 纳米CaSO4晶须 nano-calcium sulfate whisker
- 硬要 importunity
- CaSO4·2H2O CaSO4·2H2O
- 变硬 stiffen
