查询词典 coefficient of excess

The direct incorporation of U-13C glucose was estimated by the intensity increase of m/z to F(F was parent fragment, and n was the carbon number in the fragment), while the total isotope incorporation from the added 13C could be calculated according to the abundance ratio increment summation from m/z (Fa+1) through (Fa was the fragment containing all original skeleton carbons, and T was the carbon number in the amino acid molecule). The 13C enrichment in the target compound was expressed as atom percentage excess, and that of D-amino acid needed to be corrected by the coefficient of hydrolysis-induced racemization. The 13C enrichment reflected the carbon turnover velocity of individual amino acid enantiomers, and was powerful to investigate the dynamics of soil amino acids.

外加葡萄糖直接合成氨基酸的比例可利用质谱碎片的相对强度变化来评价（n为质谱碎片F中含有的碳原子数目）；而源于葡萄糖的13C同位素在氨基酸分子中的富集程度是所有同位素峰相对强度变化的总和。13C在目标化合物中的富集比例用原子百分超评价，D氨－基酸的APE还需进一步利用水解诱导的外消旋化系数校正。13C在目标化合物中的富集程度可反映各氨基酸手性异构体的碳循环速率大小，是研究土壤氨基酸动态变化的有力工具。

Control of excess carbon coefficient ~% is appropriate.

炭的过量系数控制在～％为宜。

As the excess coefficient of reducing agent increasing, the percent reduction of strontia increases, but the tendency of increasing is more and more weak.

但是，在实际生产中还应该考虑原材料的价格、设备的使用率等因素对氧化锶的还原率和经济效益的多方面影响，才能具体确定最佳工艺条件。

Through testing the effects of temperature, time and so on, better parameters of roasting reduction method can be shown as follows: excess coefficient of carbon 0.8-0.9, reduction temperature 1 150℃, reduction time 50 min.

通过考察温度、时间等工艺因数的影响，得到了焙烧还原法合理工艺条件：碳过量系数为0.8-0.9、还原温度1150℃、还原时间50min。

Through theoretical calculations and practical measurements an analysis and demonstrative reasoning were conducted of the excess air coefficient of a heat supply boiler, which has led to the increase in heat supply energy consumption.

通过理论计算和实际测试，对供热锅炉的空气过量系数导致供热能耗增加进行了分析、论证，得出了供热锅炉在实际运行中的空气过量系数增加是导致供热能耗上升的结论，并对供热锅炉的空气过量系数增大原因进行分析。

Through experiments of excess air coefficient on the PC combustion in stove, it is concluded that it is no use to add too much air at the beginning of free-oil ignition of PC.

本文通过研究过量空气系数对炉内火焰的影响规律，指出在煤粉无油点火初期不宜补充大量二次风。

Tacking burning fuel oil as an example, the impacts of excess air coefficient a on the thermal efficiency and the corrosion of furnace tubes in tubular furnaces were discussed in this paper.

以燃烧燃料油为例，讨论了过剩空气系数α对管式加热炉热效率和炉管腐蚀的影响，并从设计、操作等方面针对这些影响提出了一些建议。

Following optimal operation conditions are found through orthogonal tests: the excess coefficient of added precipitator 1.2~1.3, the pH value at the reaction end 3~4, the reaction time 30min and the reaction temperature 50℃.

通过正交实验，找出了从提取草酸的优化操作工艺条件：沉淀剂的加入过量系数为1.2~1.3，反应终点pH值3~4，反应时间30min，反应温度50℃。

There are some characteristics in thermal test and calculation of boi ler burning these fuel s, such as the calculation of excess air coefficient for large content nitrogen. Fuel characteristic coefficient would be negative. Its necessary to convert fr o m heat content into volume content for the gas fuels calculation.

用这种燃料的锅炉，其热力试验和热力计算有若干特点，如高含氮量的气体燃料过量空气系数的算法，气体燃料特性系数出现负值，将给定燃料的热量份额换算成体积份额，试验中多个取样断面等。

In the one half part, according to the strontium nature, thermodynamic calculation of correlative reaction and the principle of the vacuum aluminothermy reduction process, with the laboratory findings of preparation strontium by vacuum aluminothermy reduction compared and analyzed in different parameter conditions, a variety of factors which effect the decomposition rate of SrCO_3 and the percent reduction of strontia are gotten out. The factors include that the decomposition rate of SrCO_3 is influenced by different addition and pressure. They also include that the percent reduction of strontia is influenced by excess coefficient of reducing agent aluminium powder, the particle size of raw material or reducing agent, the pressure of barbecuing, temperature and reduction time. According to those, we can draw the conclusion as follows:(1) Decomposition temperature of SrCO_3 is decreased by adding carbon and alumina in different degree.(2) With quantitative carbon added under the vacuum condition, the decomposition temperature of SrCO_3 is decreased obviously, which can fall 150℃ compared with atmospheric pressure.(3) In keeping 1150℃ of 2.5h, under the 5Pa vacuum condition, the decomposition rate of SrCO_3 nearly keeps in 99% steadily.

在前半部分的真空铝热还原法中，根据锶的性质、相关反应的热力学计算及真空铝热还原法原理，通过对不同参数条件下的真空铝热还原法生产金属锶的实验结果的分析比较，得出了影响SrCO_3的分解率和氧化锶的还原率的种种因素，具体因素包括不同添加剂、不同气压对SrCO_3分解率的影响，还原剂铝粉的过量系数、原料与还原剂的粒度、制团压力、温度和还原时间等对氧化锶还原率的影响，得出具体结论如下：(1)添加碳和Al_2O_3能不同程度的降低SrCO_3的分解温度；(2)真空条件下加入一定量的碳可显著降低SrCO_3的分解温度，比之常压下可降低150℃之多；(3)在1150℃恒温2.5h、真空度达到5Pa的条件下，SrCO_3的分解率几乎保持稳定在99％；(4)氧化锶的还原率随还原剂过量系数的增大而增大，但是趋势越来越小，当过量系数超过25％后，氧化锶的还原率几乎不再增加；(5)氧化锶的还原率随原料与还原剂的粒度的变细而增加；(6)氧化锶的还原率随制团压力的增加而增加，但超过一定值后，氧化锶的还原率反而会下降；(7)氧化锶的还原率随还原温度的升高而增加；(8)氧化锶的还原率随还原时间延长而增加，在本实验条件下，超过2.5h趋于稳定。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。