查询词典 dioxide

Acetamide was imbedded into the net of silicon dioxide to preparing phase changing composite for heat storage by sol-gel method.

采用溶胶-凝胶法将有机相变材料乙酰胺嵌入到SiO2网络空间内，制备了复合储热相变材料。

The optimum reaction conditions are as follows: diphenylmethanethiol : methyl chloroacetate is 1:1.5, and the reaction carried out at 100℃ for 4 h, 2- acetamide can be carried out in the room temperature for 20 h, the yield of 2- acetamide was 76%, hydrogen dioxide: 2- acetamide is 1:1, and the reaction carried out at 60℃ for 3 h, the yield of modafinil was 79%, the total yield of reaction can be reached 48%.

研究表明，采用氯乙酸甲酯作为醚化试剂，反应时间4h，反应温度100℃，二苯甲硫醇：氯乙酸甲酯=1：1.5，室温下氨解反应20h，二苯甲硫乙酰胺收率76%；采用过氧化氢作为氧化试剂，反应时间3h，反应温度60℃，过氧化氢：二苯甲硫乙酰胺=1：l，莫达非尼收率79%，反应总收率可达48%。

The effect of different calcium chloride concentration, reaction time and neutralized acid on yield of tagatose was investigated by single factor tests. Results showed that the condition, such as calcium chloride (0.01～0.03 mol/L), reaction time(20～40 min), acetum, carbon dioxide, phosphate acid to synthesize tagatose was suitable.

通过单因素实验，确定了以D-半乳糖为原料进行化学法合成D-塔格糖的工艺条件为：CaCl2的添加量在0.01～0.03 mol/L，反应时间在20～40 min，并用醋酸、CO2、磷酸中和时D-塔格糖产率较高。

Process exhaust main pollution factor is the residue of sulfur dioxide, acid mist and dust, after dedusting equipment after the double-absorption can be achieved discharge standards.

工艺尾气中主要污染因子是残留的二氧化硫、酸雾及粉尘，经过除尘设备两转两吸后，能实现达标排放。

Environmental protection equipment: Buried sewage treatment equipment, acid mist purification tower, flotation equipment, water purification equipment, water and equipment, chlorine dioxide disinfection equipment.

环保设备：地埋式污水处理设备、酸雾净化塔、气浮设备、净水设备、化水设备、二氧化氯消毒设备等。

As noted, a primary cause of acid precipitation is sulfur dioxide emissions.

正如所指明的，酸性降落物的主要原因是硫，二氧化物的排放。

Sulfur dioxide is one of the main causes of acid rain.

二硫化物是形成酸雨的主要原因之一。

Other threats include human pollution, acidification from carbon dioxide and rising temperatures in Earth's atmosphere.

其它威胁还包括人类的污染、二氧化碳酸化，以及地球大气层气温的上升。

In supercritical carbon dioxide, the Wacker oxidations of acrolein and of acrylic acid were also studied.

在超临界二氧化碳中对其它邻位有吸电子基团的端烯如丙烯醛、丙烯酸的Wacker反应也进行了研究。

We started in August 2006, when 600 people gathered at the UK's biggest single source of carbon dioxide, Drax coal-fired power station in West Yorkshire for ten days of learning and sustainable living, which culminated in a day of mass action against the power station.

我们开始于2006年8月，当600多人聚集在英国最大的单一来源的二氧化碳，德拉克斯燃煤电站在西约克郡10天的学习和可持续生活，终于在一天的大规模行动，打击电站。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。