碳酸盐

A salt of carbonic acid in which one hydrogen atom has been replaced; an acid carbonate.

碳酸的一种盐，其中一个氢原子被替换，一种酸式碳酸盐。

Based on indoor measurement of rock acoustic velocity,drillability, rigidity ,uniaxial compressive strength,the relationship between acoustic velocity and fragmentation parameters of rocks and that between the surface acoustic velocity and the underground mine logging acoustic velocity were explored by regression analysis.

在室内测定岩石声波速度、可钻性、硬度、单轴抗压强度试验的基础上，利用回归分析方法，探索声波速度与岩石机械破碎性能参数之间、地面声波速度与井下测井声波速度之间相关关系，建立了利用测井声波速度预测地层岩石机械破碎性能参数的数学模型，介绍了预测剖面及资料验证结果，并将这一方法用于计算PDC钻头可钻性以及中国南方海相碳酸盐岩地层的岩石力学参数。

The performance of the electrochemical oxidation of the activated carbon in the carbonates was investigated.

研究了活性炭粉在熔融碳酸盐中的直接电化学氧化性能。

The catalytic activity was found to increase with the alkalescence of solvents.

提出在碱金属碳酸盐K_2CO_3的作用下可能遵循两步循环反应的反应机理。

Most reefkeepers know they need to measure alkalinity, and most know it has something to do with carbonate.

一些水族爱好者需要测量alkalinity，知道它与碳酸盐的关系。

A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin.

制备亚烷基二醇的方法，包括让烯化氧与水在添加剂组合和阴离子交换树脂存在下进行反应，其中添加剂组合包括二氧化碳和以足以保持反应混合物的pH值在约5.0和9.0之间的量提供的有机或无机碱，前提条件是当碱是碳酸氢盐或碳酸盐时，阴离子交换树脂是三甲基苄基铵阴离子交换树脂。

A carbonate of ammonium; used in the manufacture of ''.

铵的碳酸盐，用于制造嗅盐、发酵粉和铵的化合物。

A carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds.

铵的碳酸盐，用于制造嗅盐、发酵粉和铵的化合物。

It is found that the particle size may be controlled by modulating the quantities of nitric acid and ammonium hydroxide, the quantities of the residues carbonate ions are affected by the quantities of the citric acid and ethylene glycol.

通过调节硝酸和氨水的用量可以控制粉体的粒度，柠檬酸和乙二醇的用量影响产物中碳酸盐的含量。

Do not use HALON 1301, dry ammonium phosphate, or bicarbonate on NF3 fires because they produce toxic by-products.

不要在同NF3有关的火焰上使用HALON 1301、干磷酸铵或重碳酸盐，因为它们产生有毒副产品。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。