这种物质硬如磐石（石灰石主要就是由碳酸钙构成的），但易溶于酸。
The stuff is tough as a rock (limestone is made primarily of calcium carbonate), but it dissolves instantly in acid.
石灰石原料的煅烧制度和氢氧化钙溶液的浓度将影响碳酸钙结晶的粒度。
The calcinations regulation of limestone and the concentration of calcium hydroxide solution have effects on the granularity of the calcium carbonate crystal.
介绍硝酸铵钙的物化性能，采用硝铵熔融液与石灰石混合法生产硝酸铵钙的工艺技术；
The technology for producing CAN is also described with the mixing process between melted ammonium nitrate and limestone.
随so2浓度的增加、反应时间的增加，贝壳与石灰石的钙转化率增加。
The calcium conversion ratio of shells and limestone are increasing with the increase of SO2 concentration and the extending of reaction time.
含有溶解碳酸氢钙的水通过石灰石滴在钟乳石上蒸发，随着碳酸钙沉积物的增加不断增加着它的长度。
Water, containing dissolved calcium hydrogen carbonate, passes through the limestone and drops evaporate on the stalactite, increasing its length with a deposit of calcium carbonate.
石灰石是由碳酸钙所构成的岩石。
试验得到贝壳的最大钙利用率可达71%，而石灰石的钙利用率只有43%。
The maximum calcium conversion ratio of shell was about 71% while that of limestone was about 43%.
但是作为脱硫剂的钙基固硫剂石灰石，因其物理化学性质的差异，导致其脱硫性能有很大的不同。
Whereas, the desulfuration performance of Calcium-based Sulphur-fixation Reagent limestone is affected by many factors such as physical factors and chemical factors.
灰色粉末。是由石灰石(碳酸钙)和粘土(含二氧化硅和氧化铝)加热而成的，硅酸钙和铝酸钙混合物。
A gray powder that is a mixture of calcium silicate and calcium aluminate made by heating limestone (calcium carbonate) and clay (containing silicon. dioxide and aluminum oxide).
产品成份为锆英砂、石灰石、磷酸钙、氟化钙、硼砂。
The ingredients of the product comprise zircon sand, limestone, calcium phosphate, calcium fluoride and borax.
结果表明：调质改善了石灰石的孔结构特性，在直接硫化过程中比原始石灰石具有更高的钙转化率；
The results show that the modified limestone shows higher surface area and pore volume, and its pore size distribution is better than that of raw limestone.
结果表明：调质改善了石灰石的孔结构特性，在直接硫化过程中比原始石灰石具有更高的钙转化率；
The results show that the modified limestone shows higher surface area and pore volume, and its pore size distribution is better than that of raw limestone.
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