查询词典 coefficient

Where A is absorbance;ε is molar absorptivity or extinction coefficient.

其中 A 为吸光度，ε是摩尔吸收光系数或消光系数。

The differential eguations and boundary conditions are established, based on these hypotheses. The theoretical formulary about sample atom number with different diffusion coefficient are reasoned out; the relationship between the isotope abundance ratio and the sample wastage of melting and solid samples and the samples simultaneously at evaporation and decomposition are discussed in theory.

根据这三条假设建立了样品原子数的微分方程及边界条件，推导出了不同扩散系数的样品原子数的理论公式，从理论上讨论了熔融态、固态样品以及蒸发分解同时发生的样品同位素丰度比与样品消耗量间的关系。

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。

The slope of the best fit line (coefficient "a2") is the acceleration due to gravity for the most recent run of data.

最佳拟合直线的斜率（系数"a2"）就是最近一次试验数据的重力加速度。

As walk-off angle and acceptance angle of beam limit the conversion efficiency and the tunable wavelength range of difference frequency generation, research include effective nonlinear coefficient, walk-off angle and acceptance angle as functions of wavelength, the relationship between conversion efficiency and acceptance angle, and the impact of crystals length on the process of frequency conversion.

由于光束的走离角、允许角限制了转换效率和差频调谐波长范围，研究内容还涉及了有效非线性系数、走离角和允许角与波长的关系，转换效率与允许角的关系，以及晶体长度在频率变换过程中产生的影响。

The results showed that:(1) The relative weight gain, special growth rate, feed conversion rate, feed protein efficiency and protein deposition rate were improved significantly (P.05) by supplementing compound acidifier in common carp diet.(2) The protease activities in the liver pancreas, fore and middle intestines increased significantly (P.05) by supplementing 0.3% compound acidifier. The activities of amylase and lipase were improved after the supplementation, but not at significant level.(3) Supplementation of compound acidifier in common carp diet did not significantly affect the fish body protein, lipid, ash, moisture contents, coefficient of fatness and viscerosomatic index.

结果表明：1添加复合酸化剂显著(P.05)提高鲤鱼的相对增重率、特定生长率、饵料转化效率、饲料蛋白质效率以及饲料蛋白质沉积率等生长性能指标；2添加质量分数0.3%的复合酸化剂时，鲤鱼肝胰脏、前肠和中肠的蛋白酶活性显著提高(P.05)，酸化剂组的淀粉酶和脂肪酶活性有升高的趋势，但与对照组差异不显著；3鱼体的粗蛋白质、粗脂肪、粗灰分、水分、肥满度及内脏比等品质指标在各组间差异不显著。

Based on the acoustic absorption theory of microperforated panel and by the means of the theoretical analysis and emulation, the paper focuses on the acoustic characteristic including acoustic impedance, frequency and acoustic absorption coefficient of microperrforated panel working in the combustion chamber which has high temperature and great temperature gradient.

摘要根据微穿孔板吸声理论，采用理论分析和仿真的方法，着重讨论微穿孔板在温度梯度下的声阻抗、共振频率和吸声系数等声学特性，分析其受温度影响变化的机理。

Improved digital time-segmented PID control separated by integral action coefficient was adopted in antiaircraft missile.

某型防空导弹采用改进的数字分时段积分分离PID控制。

If more stages of compensating stages are added to the circuit, the temperature coefficient can be further decreased.

如果增加补偿级数，温度系数还可以进一步减小。

The concepts of the measure of diversity, the least increment diversity and the finite coefficient of diversity are applied to predict subcellular location of a protein according to the characteristics of statistical results and the properties of the measure of diversity that can reveal total information of system. The proteins subcellular locations are predicted by using of the least increment of diversity with the data standardized transformation. In addition, the formulas for evaluating the performance of the prediction results are given.

针对统计结果的特点和离散量反映系统整体信息的性质，将离散量、离散增量和离散有限系数等概念应用于预测蛋白质的亚细胞定位，对数据作标准化变换后用离散量理论方法预测蛋白质亚细胞定位，最后给出预测结果优劣的评价公式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。