查询词典 mass point

The phase equilibrium data of SBO-FAME-Methanol, SBO-FAEE-Ethanol and Glycerol-FAEE-Ethanol systems were measured. The results indicated that it involved two different stages: liquid-liquid-solid reaction stage and liquid-solid reaction stage. When the molar ratio of methanol to oil is 12:1 at 65℃, the turning point is at a 55% biodiesel yield. The liquid-liquid-solid reaction model was proposed based on the double-membranes theory. It indicated that the process is reaction and mass transfer controlled together at the first stage, and the second stage is reaction controlled. The predictions of the model are matched with the experimental results.In the end, the acid was extracted using methanol and ethanol from jatropha curcas l oil.

测定了生物柴油制备过程中的SBO-FAME-Methanol、SBO-FAEE-Ethanol、Glycerol-FAEE-Ethanol三组分相平衡数据，表明固体碱催化过程分为液-液-固和液-固两个反应阶段，在醇油摩尔比为12：1、65℃的初始反应条件下，转化率达到55%时，为第一阶段向第二阶段的转折点；基于双膜理论建立了固体碱催化制备生物柴油的非均相液-液-固反应模型，表明两个反应阶段分别为传质、反应共同控制和反应控制，模型计算值与实验值吻合较好。

With a view of generally controlling, reducing, and preventing the In-migrant crime, the countermeasures should be formed from a individual, mass and macroscopical point.

从预防外来人口犯罪的个体层面、群体层面和整个社会宏观层面来构建预防犯罪的对策，从而达到逐步控制、减少和预防苏州市外来人口犯罪的目的。

Kranz was quick to point out, however, that there was still a lot of work to do and that the first mass produced model won't be ready for sale until 2015 at the earliest.

克兰兹是迅速指出，但是，仍然有很多工作要做，并首次大规模生产的车型将不会愿意出售，直到2015年最早在。

The field equations are derived using the post-Newtonian scheme, and the approximate solution is presented for a point mass with electric and dilaton charges.

用了后牛顿极限的方案，我们导得场方程式，并得到场源是带有电荷及Dilaton charge的点质量时，时空与场的近似解。

The pinch point technique is used for energy analysis in heat exchange of mass flow in a Kamyr continuous digester ,as a result the design is improved and energy saving in cooking is realized.

介绍了夹点技术的原理、夹点的确定及其在工程使用中应遵循的原则，并针对某造纸厂的卡米尔连续蒸煮器的物流换热，用夹点技术进行了能量分析，取得了更好的设计，达到较好的节能效果。

The results showed: at 60℃, when the mass fraction of AMS-EVA is 0.5%, the pour point of Daqing crude oil is reduced by 10℃.

实验结果表明：在加剂温度为60℃时，AMS-EVA复配降凝剂的最佳加剂量为0.5%，可使大庆原油凝点降低10℃。

Basic characteristics of cosine transform spectrum were analyzed, where contour lines of 2D cosine transform of point mass present the shape of a quarter of concentric circles and the number of counter become small along with the increasing of wave numbers. The spectrum of vertical rectangularcylinder put up periodic zero counters which mark off quadrate areas, the values of counter in each areas alternately change between the plus and the minus, and with the increasing of wave number, the values of counter present attenuation character alike e exponent.

分析了点质量和直立矩形柱体重力异常余弦变换谱的基本特征：点质量二维余弦变换谱等值线呈1/4同心圆形状，等值线随着波数的增大而变稀；直立矩形柱体谱出现了周期性变化的零等值线，该等值线将非零等值线划分为a×b个矩形区域，而且等值线值在各矩形型区域中正负交替变化，随着波数的增大，不同的矩型域中等值线值呈e指数衰减特征。

Also the normal form and thediagram of the Hopf bifurcation are deduced with the normal form direct method.Secondly, the influences of the physical and aerodynamic parameter on the type of theHopf bifurcation are analyzed. Study shows that the "hard" structural non-linearitiesand the longer distance of the suspension point and the center of mass render theairfoil safer, whereas the "soft" ones render the airfoil more unsafe.

同样应用规范型直接法，研究得出系统颤振的Hopf分岔解的规范型以及分岔图；其次，研究了系统结构和气动参数对Hopf分岔类型的影响，结果表明，表明具有&硬&弹簧性质的结构及增大悬挂点与质心的距离都有助于提高安全性，而应该避免应用&软&弹簧性质的结构。

In the first section I talk about the difference between folk-culture and pop-culture, then point out the relationship between the common people and the mass media.

第一节就民间文化与大众文化的差异加以讨论，指出大众与传媒的关系。

The surface morphologies of coal pitch spheres were characterized by scanning electron microscope and polarized light microscope. The effects of naphthalene content on the softening point of the modulated pitch, balling temperature on the spheres morphologies and the max mass ratio of pitch to the liquor were investigated.

使用扫描电子显微镜和偏光显微镜对沥青球的表面形貌进行表征，探讨了减黏剂萘含量对调制沥青软化点的影响，成球温度对球形貌的影响以及沥青／水相的最大质量比。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。