查询词典 sodium

Moreover, the crossed experiment has been performed to determine the optimum condition: the molar ratio of glyoxylic acid to o-ethoxyphenol to sodium hydroxide 1.0:1.2:2.5, sodium hydroxide concentration 2mol/L, temperature 50℃, time 5h.

通过正交实验确定了合成的最佳条件：n：n：n=1.0：1.2：2.5，氢氧化钠浓度2mol/L，温度50℃，时间5h。

To analyze results through statistical methods, and possess significant difference when P.05(a=0.05). To observe that effect of volume of distilled water on synthesis of hemihydrated gypsum is bigger, and the effect better when distilled water: raw materials as 150ml:100g; whereas effect of Calcium Chloride and sodium Succinate smaller, and the effect better when Calcium Chloride: dehydrated gypsum as 1:2, sodium Succinate as 0.75%.

采用统计学方法进行分析，P＜0.05时具显著性差异(a=0.05)结果：在试验中观察到蒸馏水量对半水石膏合成影响较大，当蒸馏水与原料比为150ml：100g时效果较好；而氯化钙及丁二酸钠影响较小，当氯化钙与二水硫酸钙质量比为1：2，丁二酸钠为0.75％时效果较好。

The effect of hydrophobic additive on the seed precipitation from sodium aluminate solution was studied by adding fatty acid and heneicosane at different proportions. The results show that when the mass fraction of fatty acid is in the range of 32%-49% and the additive concentration in sodium aluminate solution is 150×10-6 g/L, the rate of precipitation increases, but the particle size of Al3 and Al2O3 reduces.

摘 要：研究了疏水性添加剂脂肪酸类阴离子表面活性剂与21-碳烷不同配比对铝酸钠溶液分解产生氢氧化铝和氧化铝的粒度、强度及分解率的影响，考察了产物Al3和Al2O3的强度和粒度之间的关系，探讨了添加剂影响铝酸钠溶液晶种分解的相关机理。

The paper studied on the stripping property of thiourea dioxide,sodium hydrosulphite,sodium bisulfite and Lowenstein dye.

通过用二氧化硫脲、保险粉和亚硫酸氧钠，对劳瓦森染料和一系列国产染料的溶液和染色的毛皮进行拔色实验，研究了这几种材料的拔色性能。

Sodium Hydrosulphite; Sodium Dithionite

低亚硫酸钠；连二亚硫酸钠

The combination of physical and chemical cleaning was performed on the cleaning of fouled membrane. After aeration for 2 hr, 400 mg/L sodium hypochlorous cleaning for 2 hr, and then 200 mg/L sodium hypochlorous marinating for 20hr, the specific membrane flux recovered to 81.51%.

对污染膜组件的清洗采用物理清洗与化学清洗相结合的形式，空曝2小时、400ppm次氯酸钠清洗2小时、200ppm次氯酸钠溶液浸泡20小时后膜比通量恢复至81.51%。

On the basis of the preparation of special-grade sodium hypophosphite by one-step method in the high-speed reactor,the produced sodium hypophosphite and the byproduct calcium phosphite were further converted to higher-purity hypophosphorous acid and phosphorous acid products by ionic membrane electrodialysis.

在作者开发的高速反应器一步法制专用级次磷酸钠的基础上进一步将生成的次磷酸钠和副产的亚磷酸氢钙用离子膜电渗析法制成纯度更高的次磷酸及亚磷酸产品，产品质量升级，回收利用了副产亚磷酸氢钙，并减少了原料烧碱的用量。

Methods: 252 patients with tuberculous pleuritis were divided into two groups by random allocation. Urokinase group: 126 cases received intrapleural injection with urokinase 5×10^4 U adding into 0.9% sodium chloride injection 20 ml after each thoracic drainage, and non-Urokinase group: 126 cases received intrapleural injection with 0.9% sodium chloride injection 20 ml after each thoracic drainage.

将252例患者随机分为两组，尿激酶组126例，用0.9%氯化钠注射液20 ml加尿激酶5万U于每次抽液后行胸腔内注射；非尿激酶组126例，用0.9%氯化钠注射液20 ml于每次抽液后行胸腔内注射，治疗结束后进行比较。

Sodium hypochlorite's tissue-dissolving properties and its antimicrobial properties make it a wonderful irrigant. However, sodium hypochlorite would not be the best choice when a resin is to be applied.

次氯酸钠良好的组织消溶性和杀菌性使其成为一种很好的清洗剂，但在有需要安装树脂假牙的情况下并不适合使用次氯酸钠。

By reacting isobutyraldehyde with diethyl oxalate using sodium methoxide as catalyst,3-methyl-2-oxobutanoic acid,sodium salt was prepared by one pot.

采用甲醇钠催化异丁醛与草酸二乙酯反应，一釜法合成了3-甲基-2-氧代丁酸钠。

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。