... 以120kg以内的载荷和顶角为136°的金刚石方形锥压入器压入质料表面,用质料压痕凹坑的表面积除以载荷值,即为维氏硬度值(hv)。 生石膏(gypsum) 金刚石(diamond) ...
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gypsum mold 石膏铸模 ; 石膏模 ; 石膏型
gypsum board [建] 石膏板 ; 石膏纸板 ; 灰浆和石膏板 ; 及石膏板
calcined gypsum 煅烧石膏 ; [化工] 烧石膏 ; 煅石膏 ; 建筑石膏
gypsum powder 石膏粉 ; 熟石膏粉
gypsum cement 石膏水泥 ; 石膏
gypsum plaster board 石膏板 ; 石膏壁板
gypsum plank 石膏板 ; 石膏条板
fibrous gypsum 纤维石膏 ; 纤维状石膏 ; 纤石膏
The fast setting of most building gypsum is unfavourable for construction. So the retarding effect of impurities can be utilized positively.
对凝结非常迅速而不利于施工的半水石膏而言,杂质的缓凝具有利用价值。
参考来源 - 杂质对不同相磷石膏性能的影响Through XRD analysis on the single particles, main minerals of the air dust are quartz, felspar, dolomite, calcite, gypsum and barite.
用X射线衍射和能谱仪对单颗粒矿物作成份分析得知：大气尘的矿物成份主要是石英、长石、白云石、方解石、石膏、重晶石等矿物，以石英为主，其次是伊利石、石膏。
参考来源 - 成都市近地表大气尘的环境地球化学特征·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-UNCOUNT Gypsum is a soft white substance that looks like chalk and which is used to make plaster of Paris. 石膏
As we know, gypsum is soluble in water.
我们知道，石膏是溶于水的。
You'll find lots of gypsum deposited at Lechuguilla.
你们会在拉曲吉亚洞穴中发现许多沉积下来的石膏。
If there were flowing water in the cave, it would dissolve the gypsum.
如果洞穴里有流动的水，它会溶解石膏。
So when spacecraft are sent to other planets, scientists will look for layers of gypsum in hopes of finding similar fossils.
VOA: special.2010.05.25
Pieces of gypsum broke off. The wind wore them away to a size small enough to pick up and carry for short distances.
VOA: special.2010.01.04
He examined fossilized remains in a piece of gypsum found on the bottom of the Mediterranean Sea.
VOA: special.2010.05.25
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