摘要用氧气体积分数法划分低瓦斯采空区自燃“三带”是目前在工程实践中应用最为广泛，也是最有效的方法。
Abstract: the oxygen concentration method is the most effective and most commonly used method in dividing spontaneous combustion "three zone" in low-gas goaf in engineering practice at present.
如果使用国际糖分析统一方法委员会表，他或她将以质量分数报告。
If using the ICUMSA tables, he or she would report in mass fraction.
目的：探讨门控心肌灌注断层显像（GMPT）、平衡法心血池显像（GBPI）与心动超声（UCG）测定左室射血分数（LVEF）的差别。
Purpose: To compare gated myocardial perfusion tomography (GMPT), gated blood pool imaging (GBPI) and ultrasound cardiography (UCG) in left ventricular ejection fraction (LVEF) calculation.
其内容涉及记数法、进位制、分数概念、计算工具、算术和几何等内容。
Its main contents include: numeration, conception of fraction, calculating utensils, arithmetic and geometry.
燃用煤中硫的质量分数小于1%的海滨电厂可考虑采用海水法脱硫工艺。
The seashore power plants with less than 1% mass fraction of S in fired coal can take the sea water process into consideration.
测试表明，甲醇体积分数10％-15％的甲醇汽油各项性能与一般车用无铅汽油相当，可使汽油研究法辛烷值提高1．5-3．5个单位；
Most of the performances of methanol gasoline of 10%-15% ( volume fraction) methanol are nearly the same as those of unleaded motor gasoline and the RON is 1.5-3.5 higher.
为了减少工作电解液的配方试验工作量，利用单纯形法对高含水率(48%，质量分数)电解液进行试验设计。
In order to reduce experimental amounts, proportioning design of a new operating electrolyte with high water content (48%, mass fraction) was optimized by simplex method.
用单纯形优化法，选用摩尔分数目标函数求出了相应的模型参数。
NRTL model was used to correlate and calculate LLE data of system and model 's parameters were obtained by using of simplex optimization method with objective function of mole fraction.
一般说来，核等值法有五个步骤，分别是前平滑处理、估计分数概率、连续化、等值、计算等值标准误。
The kernel method of test equating has five steps, including presmoothing, estimation of test score probability, continuation, equating and calculation of standard error of equating.
分数维的计算采用改进的盒子计数法。
The modified box-counting method is used in estimating fraction dimension.
对采用两段法加氢工艺加工某催化裂化柴油得到的芳烃质量分数低于25％的产品柴油窄馏分的性质进行了分析。
The narrow-cut fractions of FCC LCO hydrogenated by the two-stage process, whose aromatics content is less than 25 %, was studied.
用单纯形优化法，选用摩尔分数目标函数求出了相应的模型参数。
NRTL model was used to correlate and predict the LLE data, and parameters of the model were obtained by using simplex method with objective function of mole fraction.
简要介绍分形的基本概念，探讨用分数维法模拟矿体表面的途径。
The basic conception of fractal is introduced, and the way to generate an orebody surface by means of fractional dimension is discussed in this paper.
目的：用“分数维”彩色血流信号定量法来探讨肾脏内部彩色血流信号与肾脏结构及功能的关系。
Objective: To discuss the relationships of the color Doppler signals and the structures and functions of the kidney by Fractal Dimension.
使用信心指数法将专家的分数修正为三角模糊数；
The assessment marks of experts are modified to triangular fuzzy numbers using the confidence index.
免疫组化法计数VEGF阳性细胞百分数并进行半定量分级。
The VEGF positive cells percentage and semi quantitative classification were obtained by immunohistochemical staining after tumor formation in nude mice.
方法采用间接免疫荧光法检测白血病患者T淋巴细胞亚群、NK细胞百分数，MTT法检测NK细胞杀伤活性。
Methods t lymphoid subgroups and the percentage of NK cells were detected by the use of indirect immunofluorescence method the function of NK cells was detected by MTT.
基于小角X射线散射理论，利用逐级切线法和材料分形理论中的散射强度法，分别计算PAN基炭纤维内微孔大小、体积分数及微孔表面分形维数。
Based on SAXS theory and fractal theory, we obtain the calculating method and calculating formulas of the pore size, pore volume percentage and the fractal of pore surface in PAN - based carbon fiber.
目前计算分数维广泛采用的方法是盒维数法。但对于灰度图像而言，盒维数计算的结果太粗略以致于很难将它作为进行图像分析的特征。
The popular method for fractal dimension estimation is box-counting method, but as to gray level images, the results are so coarse that they could hardly be used as the feature for image analysis.
通过正交试验法探讨了提取工艺的最佳条件，分别考察了乙醇体积分数、超声时间和固液比3个因素对槲寄生中总黄酮提取率的影响。
Orthogonal test was used to evaluate the influence of the 3 factors, including the concentration of ethanol, the extracting time by ultrasonic, and the rate of solid and liquid.
采用焓法对组合式相变材料（PCM）储热系统的相变过程进行了数值计算，分析了组合式相变材料中各个PCM组分质量分数的变化对系统储热性能的影响。
The enthalpy method was employed to investigate the phase change process in a latent thermal energy storage(LTES) system using multiple phase change materials(PCMs).
引入数值模拟法预测气藏动态的基本思想，深入研究了组分数模模型；
The theory about performance prediction for gas reservoirs by numerical simulation is introduced, and the mathematical model of the compositional simulation is studied deeply;
用水蒸气蒸馏法提取了赤桉叶和本泌桉叶精油，通过气相色谱-质谱（GC-MS）联用法分析鉴定了二者的化学成分及质量分数。
The essential oils of leaves from Eucalyptus camaldulensis and Eucalyptus benthami were extracted by steam distillation and their chemical constituents were determined by GC-MS method.
结合某铀矿床碱法地浸室内试验，进行了氧化剂的种类、质量分数和溶浸剂的种类、质量分数选择试验，研究了反应时间、矿石粒度对铀浸出率的影响。
According to the in-room experiment for alkaline leaching of uranium deposit, the effects of the sorts and concentration of oxidants and solvent solutions are studied.
锰泥为两步氧化法生产高锰酸钾后的残渣，其中含有质量分数约20%的二氧化锰。
Manganese slag which containing about 20% manganese dioxide is produced in the process of potassium permanganate production.
探索了用双极性膜电渗析法处理含质量分数为0 . 2 %醋酸废水的可行性。
Bipolar membrane electrodialysis is used to recover acetic acid from dilute waste water containing 0.2% acetic acid.
采用等效比热法来确定液相分数，假定固液相等同区来解决工件熔化区与非熔化区的移动边界。
Equivalent latent heat was adopted to determine liquid quantity and solid-liquid identity was adopted to solve moving interface between molten and solid region.
采用等效比热法来确定液相分数，假定固液相等同区来解决工件熔化区与非熔化区的移动边界。
Equivalent latent heat was adopted to determine liquid quantity and solid-liquid identity was adopted to solve moving interface between molten and solid region.
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