中柱的

Applying the classical method,using anisotropic rectangular coordinates,this article educes the field strength expression by electrified cylindroid and cylindrical surface as well as infinite straight lead in linear anisotropic homogeneous dielectric.

应用各向异性直角坐标系的概念，借助经典的定理 E =- xΦ，导出了带电椭圆柱面、圆柱面、无限长直导线在线性各向异性均匀电介质中的场强表达式。

Using first order plug-flow reactor model, BOD5 removal rate constants of the whole wetland system were estimated to be 0.50 1/day (at 24℃) and 0.76 1/day (at 24℃) in the start-up and stable phase, respectively. These values were comparable to or even higher than the value of deoxygenation rate constant, 0.23 1/day (at 20℃), that is normally used in the river water-quality model.

由一阶柱塞流反应器模式(first order plug-flow reactor model)估算人工湿地系统启动阶段及稳定操作阶段的BOD5去除速率常数平均分别为0.50 1/day(24℃)及0.76 1/day(24℃)，相当於或甚至高於一般河川水质自净模式中的BOD5脱氧速率常数的0.232 1/day(20℃)。

We derived the scalar quantity of magnetic quasi-static vector equation in the electromagnetic crystallizer in the cylindrical coordinates by assuming condition for the mathematical modeling of the electromagnetic crystallizer and dimensionless method and reduction of parameters of electromagnetic governing equations.

在假设了对电磁结晶器数学建模的依据条件下，通过对电磁控制方程组进行参数无量纲化和简化，在柱坐标系中，推导出电磁结晶器内的磁准静态矢量方程的标量形式。

Not only for obtaining practical application but also to providing theoretical basis of ore drawing, a combined conceptive model of column drawing and MMVD has been resulted which is applied for the ore drawing simulation of high level block caving production management.

为了便于实际应用，又具有理论依据，提出了柱状体与改进的空位扩散模型的组合概念模型，该模型可应用于高阶段矿块崩落法放矿生产管理的放矿仿真中。

Because of the uncertainty of contact position between drill stem and casing-pipe wall, people always estimate the number of protector and the position of appending protector though locale experience.

由于钻柱与套管壁接触点位置的不确定性，在工程中，都是通过现场经验来估计所需保护套的数量以及添加的位置，但并不能保证所有保护套都能得到有效使用。

A powerful detachment of infantry of the line, broken at regular intervals, by the National Guard and the Municipal Guard on foot, and supported by serried masses which could be heard though not seen, debauched into the street at a run, with drums beating, trumpets braying, bayonets levelled, the sappers at their head, and, imperturbable under the projectiles, charged straight for the barricade with the weight of a brazen beam against a wall.

一支强大的步兵呈战列纵队，在相当的距离内，平均地安插在国民自卫军和保安警察队之间，并有无数听得到看不见的人作后盾，向大街跑步冲来，他们擂起战鼓，吹着军号，刺刀平端，工兵开路，在枪林弹雨中沉着前进，直抵街垒，象根铜柱那样把重量压在一堵墙上。

My promise will be poromised for all the life one of his lifetime!

我将会花一生的时间守柱我的诺言在他的其中一生中。

While retrieving the column density of trace gases with the scattered sunlight as light source,it will be affected strongly by solar Fraunhofer lines,which is also called Ring effect.

被动DOAS中利用太阳散射光作为光源解析大气污染气体柱浓度时，会受到太阳弗朗和费光谱的"填充线"即Ring效应的强烈影响，尤其是对浓度很低的痕量气体，致使不易获取其浓度、影响其测量精度。

There is water vapor absorption near 940 nm band, so the water vapor abundance can be retrieved on the basis of its functional dependence on the transmission in the 940 nm band.

大气中的水汽对940nm附近的太阳辐射吸收较强，利用水汽吸收透过率与水汽量的关系可以反演大气柱水汽总量。

Base on the Fluent software,the time-average N-S equation,RNG k-ε turbulence modeling,P1 radiant modeling and particle track modeling,example for boost motor PQM-1 of Titan 4,by using flow-solid coupling boundary condition,the 2D axial symmetry gaseity fluid modeling and two phase fluid modeling were founded and the influence of coagulate particle to the flame-spread process in large aspect ratio SRM ignition transient were analyzed.

0引言固体火箭发动机点火过程是点火燃气流动与火焰传播相互耦合的过程，即包括点火燃气流动、药柱加热、局部点燃、火焰传播、室压建立等复杂的非定常过程，其中火焰传播在点火瞬态过程中占有重要地位，是发动机点火延迟、压强峰值过高、断续燃烧和熄火的主要因素，因此国内

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐