碳酸钙

Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

在此之前碱性的湖变干的，石灰华形成一个淡水泉水从下面渗出形成碳酸钙沉淀。

Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

在此之前，碱性湖泊变为干燥，石灰华形成时正当淡水春季渗透到下面，并形成碳酸钙的沉淀。

Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

在此之前碱性湖泊干枯，石灰华成形时当淡水春天从下面渗出形成碳酸钙堆积物。

Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

在此之前，碱性湖泊变干燥，钙华形成时，当淡水泉过滤来自下面，并形成碳酸钙的沉淀物。

Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

在此之前去碱湖干，石灰华形成春季时淡水过滤从下面形成碳酸钙沉积。

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。

Polyaspartic acid was synthesized using maleic anhydride and ammonium salt as raw materials and characterized by IR and TG-DTA.

以马来酸酐和铵盐为原料合成聚天冬氨酸，对聚天冬氨酸进行了红外光谱和差热-热重分析表征，并对其阻碳酸钙垢及分散氧化铁的性能做了较系统的研究。

Carbon dioxide is produced when oily sludge and hydrochloric acid slug combinations are injected into porous media.

通过ICPOES、SEM等手段确定了污泥的主要组分为碳酸盐，其中含有菱形及球形碳酸钙颗粒。

Borax calcium carbonate, hydroxide, copper sulphide, ferric oxide, barium carbonate, antimony trioxide, all kinds of metallic hydroxide, kinds of heavy metallic salt, synthetic cryolite and so on.

无机物：硼酸、碳酸钙、氢氧化物、硫酸铜、氧化铁、碳酸钡、三氧化锑、各种金属氢氧化物、各种重金属盐、合成冰晶石等

However, silanes do not interact to any significant degree with the ubiquitous calcium carbonate, or with barium sulphate, carbon black or boron compounds, and cannot be used as coupling agents with these fillers.

但是，硅烷不与使用普遍的碳酸钙有任何作用，与硫酸钡、碳黑或者硼化合物也是这样，因此硅烷不能用作这些填料的偶联剂。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。