碳酸

各种碳酸的含量可与pH值、硬度的测定结果进行校核。

The content of different carbonic acid can be checked with pH value and the determining result of water hardness .

从试验结果认为CO2先溶解于水成为碳酸是碳化反应的第一步。

It is found that dissolution of CO_2 into water to form carbonic acid is the first step of carbonation .

碳酸钙加热分解，生成氧化钙和二氧化碳。

The thermal decomposition of calcium carbonate produces calcium oxide and carbon dioxide .

蝙蝠、燕子以及更多的动物遗体以化学方式保存成他们死亡时的姿势，被密封在水里的碳酸钠沉积物中。

Bats , swallows and more are chemically preserved in the pose in which they perished , sealed in the deposits of sodium carbonate in the water .

在大多数情况下，“糖税”用来减少含糖量较高的碳酸饮料、非碳酸饮料、和运动能量型饮料的生产、进口及购买。

A soda of reduced overall sugar consumption . In most forms the tax is designed to discourage the production , importation and purchase of carbonated , uncarbonated , sports and energy drinks , with excess levels of added sugar .

活性轻质碳酸钙填充发泡PE力学性能研究

Study on Foam PE filled with activated light caco_3

碳酸铝铵法制备圆饼状α-Al2O3粉末

Preparation of Disperse Cake-like α - Al_2O_3 Powder by AACH Method

PbO-Yb2O3催化苯酚与碳酸二甲酯的酯交换反应

Transesterification of Dimethyl Carbonate and Phenol over PbO-Yb_2O_3 Catalyst

含CdS的聚碳酸醋薄膜的光电效应

The photoelectric effect of polycarbonate membrane contaning CDs

碳酸钠对烷基苯磺酸钠/脂肪醇聚氧乙烯醚/H2O体系相行为和流变性的影响

Effect of Na_2CO_3 on the Phase and Rheological Behaviors of LAS / Neodol_ ( 25-9 ) / H_2O

PTC用高纯碳酸锶的研制

Preparation of High Purity Strontium Carbonate for PTC

碳酸锂，GCSF、糖皮质激素对ATD引起的粒细胞缺乏症治疗效果明显。

Lithium carbonate , G CSF and glucocorticoids were very effective in agranulocytosis induced by ATD .

用积分反应器在固定床连续流动反应体系中进行CO气相催化合成碳酸二乙酯。

The catalytic synthesis of diethyl carbonate in carbon monoxide vapor phase was conducted in the fixed-bed continuous flow system by using an integral reactor .

研究了混炼工艺对聚亚丙基碳酸酯（PPC）／SBR共混物性能的影响。

The influence of mixing procedure on the properties of PPC / SBR blend was investigated .

研究了碳酸锂碳化反应动力学，利用气-液-固三相机械搅拌反应器，通过监测反应过程中CO2气体的压力变化与消耗情况，计算出反应速率，简化了分析步骤。

The kinetics of the carbonization reaction of lithium carbonate was studied . A gas-liquid-solid three-phase mechanical agitated reactor was used as the reactor .

研究了丙烯酸烯丙基磺酸钠（AASAS）二元共聚水溶性固体阻垢剂的合成工艺及对碳酸钙的阻垢效果。

Acrylic acid ( AA ) and sodium allyl-sulfonate ( SAS ) have been used to synthesize a solid scale inhibitor .

本文研究了气相色谱法分离和内标法测定碳酸二乙酯（DEC）含量。

The gas chromatographic separation and detection of diethyl carbonate ( DEC ) has been studied .

碳酸钙对UPVC型材性能的影响

Effect of CaCO_3 on the Properties of UPVC Profile

副产物甘油一碳酸酯、酯交换试剂DMC存在对混合燃料燃烧性能的影响较小。

The by-product GC and the ester exchange reagent have a little effect on combustion performances of the biodiesel fuel .

研究了不同表面处理剂改性木粉填充回收PP的力学性能、加工性能.采用扫描电镜观察了纳米碳酸钙包覆木粉的形态，并对其耐热性能进行了分析。

Mechanical and processing properties of wood flour filed recycled PP with different surface modification agent were studied and the coating wood flour with nano-CaCO_3 were observed through SEM .

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。

Aragonite at 0 to 70 ℃ was synthesized by slow decomposition and two step overgrowth approaches . The phase compositions and morphology were detected by XRD and SEM techniques .

长安黄土岩溶泉是通过缓慢、均匀的入渗补给的，这决定了它比碳酸岩岩溶泉的pH低，电导率大。

The karst springs in the village are recharged by slow and uniform permeation , so the pH values of the karst springs in loess are lower but the conductivities are higher than that in limestone .

土壤速效氮磷钾对腐殖质各组份都有影响，但对HA/FA比值影响最大的是碳酸钙和pH。

The available N , P and K contents in soil affect the compositions of humus , and the calcium carbonate and pH of soil are the most important factors in affecting the ratio of HA and FA .

KNO3/AlSBA-15分子筛催化合成碳酸二丙酯的研究

Synthesis of Dipropyl Carbonate from Dimethyl Carbonate and Propanol Catalyzed by KNO_3 / AlSBA-15

TBAB修饰的负载型Wacker催化剂催化甲醇羰基化合成碳酸二甲酯

TBAB-modified Supported Wacker-type Catalysts for Highly Selective Oxidative Carbonylation of Methanol to Dimethyl Carbonate

研究了活性轻质碳酸钙（活性钙）、聚乙烯蜡（PE蜡）、丙烯酸酯（ACR）用量对型材表面光亮度的影响。

The effects of the contents of activated light calcium carbonate , PE wax and acrylic ester ( ACR ) on the surface gloss of plastics profile shapes were studied .

碳酸锂对抗AFB1诱导大鼠肝癌过程中MDA、4-HNE的表达及意义

Expression of MDA and 4-HNE in AFB_1-Induced Rat Hepatic Putative Preneoplastic Lesions Alleviated by Li_2CO_3 and Their Significance

通过机械搅拌、冷压成型烧结方法，制备了纳米碳酸钙填充改性聚四氟乙烯（PTFE）复合材料；并研究了复合材料的物理机械性能。

PTFE ( polytetrafluoroethylene ) composite modified by nano-meter CaCO_3 was prepared by means of mechanical mixing and cold-press sintering , and the mechanical properties of the composite were studied .

对多种合金在碳酸二甲酯（DMC）合成反应体系中的腐蚀进行了实验研究，为DMC合成反应器选材提供了实验依据。结果表明，合成反应的介质腐蚀性很强，合金材料腐蚀严重；

The corrosion of some alloys in dimethyl carbinate ( DMC ) synthesis reaction was studied , selection of materials and inhibitors was based on the investigation .

通过联碱碳酸化塔中与CO2浓度相关且可在线实时检测的参数，如进气量、温度、压力等，构造出CO2浓度的多元一次回归模型。

The one-order-regress mode with multi-variables for the CO2 concentration is built according as the correlated online parameters such as the volume of the entering gas , the temperature and the pressure of the tower , etc.