生碳酸钙的

Aragonite at 0 to 70℃ was synthesized by slow decomposition and "two step" overgrowth approaches.

采用缓慢分解法和"两步法"的附晶生长法，在低温(0℃～ 70℃)下实验合成纯文石型碳酸钙矿物，以XRD和SEM技术对合成矿物的相组成和形貌进行了鉴定。

Is a company specializing in the production of barium sulfate, heavy calcium carbonate superfine powder, sets of mineral development, scientific research, production and sales of integrated enterprise.

宜昌合生化工有限公司是一家专业生产硫酸钡、重质碳酸钙超细粉体，集矿产开发、科研、生产、销售为一体的综合性企业。

Calcicole Describing plants that thrive on neutral to alkaline soils rich in calcium carbonate, i.e.

钙生植物：在富含碳酸钙的中性或碱性土壤中生存的植物。

A good balance between the dynamic property and the thermal-oxydative ageing property on the blend vulcanizates were obtained when curing system is SEV and the S/CZ/DM ratio of 1.5/1.5/0.5;There was a good balance among tensile strength and heat build-up and damping property on blend vulcanizes filled with moderate size carbon black;The mechanical properties of vulcanizate filled with N660/N330 and N660/N990 were medium between two carbon black filled individual.

补强填充体系对NR/ENR硫化胶的性能有较大的影响，选择粒径适中的炭黑品种N660作为补强剂，硫化胶在拉伸强度、疲劳生热和减震方面可以获得较好的平衡；N660/N330和N660/N990两种填充体系硫化胶的力学性能，基本上是单用一种炭黑所得硫化胶力学性能的加权平均；N660/白炭黑(40/20)和N660/碳酸钙(45/15)填充体系硫化胶的力学性能与相同用量下N660单用时的相当，而N660/陶土填充体系硫化胶的力学性能较差。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。