上模

In strictly, it is hard to make the light normal incident into the sphere, double refraction will take place in crystal sphere when a TEM〓 mode Gaussian beam oblique incident into the sphere, and the two orthogonal polarized beams are both elliptical Gaussian beam. The ellipticity and eccentricity of the elliptical Gaussian beam will change with the incident angle, and for a fixed incident angle, they will change with the shifting of incident beam waist position.

由于严格意义上的正入射较难实现，基模圆高斯光束斜入射晶体球后将在球内产生双折射，且球内偏振态正交的两束折射光都将是椭圆高斯光束，它们的椭圆度e和偏心度Δ随入射角的改变而改变，在入射角一定的情况下，入射光束束腰的移动也将改变这两束折射光的椭圆度e和偏心度Δ。

The main products of the company : double/single screw stem extruder, aluminium-plastic compound pipe,(PP-R, PE,PVC)copper plastic compound pipe,plastic special-shaped material, plate, sheet material, foamed plastic picture frame material, belt for packing, plastic pipe material, plastic graining and other sets of production line and series of high-speed heating/cooling mixing unit, drying machine, feeding machine, crusher, grinding machine, dehydrating drying machine, mould temperature controller, water cooling machine, screening machine and other auxiliary equipment.

张家港华铭机械有限公司是由张家港市塑料机械的开创者群体经优化重组而创建，主要从事塑料机械产品的研发制造，主要产品有单、双螺杆挤出机、铝塑复合管、(PP-R、PE、PVC)铜塑复合管、(PVC、PC、PE、PS等)塑料异型材、(PVC、PE、ABS、PP、PS)板材片材、塑料发泡镜框型材、打包带、塑料管材、塑料造粒等成套生产线，以及系列高速加热、冷却混合机组、干燥机、上料机、破碎机、磨粉机、除湿干燥机、模温控制器、冷水机、分筛机等各类辅机周边设备。

Therefore , it has too great error in engyneering that Dowson's function and Herrebrugh's function are used to calculate the film thickness of high-pair with middle elastic modulus.

因此，中等模量时采用Dowson或Herrebrugh公式在工程上也显得误差过大。

New technology and essentials in die design for upset ting drill key on a universal press was introduced.

介绍了在通用冲床上镦锻钻头钥匙的新工艺和模具设计要点，并给出了实用的模具结

On the basis of finite element theory, the wheel's driving speed was taken into consideration.

此外，模态计算还以有限元理论为依据，考虑了车轮行驶速度的影响，将其通过预应力效应的方式施加在车轮上。

In order to create structural optimization model with aeroelastic constraints, dual lattice method is used to evaluate the unsteady aerodynamic force and V-g method is used to estimate the critical flutter speed.

作者采用子结构技术进行了结构的静动力分析，推导出基于"静载模态"概念的子结构响应的灵敏度计算方法，使得子结构响应分析和灵敏度计算在程序上融为一体。

We have obtained the dual cross product 〓 if a Kac-systemacts on a Hilbert 〓-module E;then we generalized Baaj and Skandalis'duality theorem.

我们得到当一Kac-系统作用在〓模E上时，两次交叉积E×S×S等价于〓；从而，Baaj和Skandalis的对偶理论是我们的一个特殊形式。

Then fracture models were measured using the electrometric method after fixed in the different fixation postures.

在此模型的基础上将部分单元假设成肉芽组织的弹性模量、泊松比和剪切模量，同样运用Super-Sap计算程序运行生成骨折线为横型、桡斜型和尺斜型三种腕舟骨腰部骨折模型，然后在这三种骨折模型的基础上通过力的加载后模拟得到腕关节在不同固定体位下各种工况的模型，共144个工况模型。

This high voltage electrostatic precipitation controller has 7 channels of analog input,2 channels of analog output, 12 digital inputs and 16 digital outputs. The analog input includes primary current, secondary current, primary voltage, secondary voltage, etc. Controller uses MAX 187 as the A/D converter, which ensure the sampling speed and the conversion precision in the same time. The processor unit is RCM2250 module. Rabit 2000 processor, a 128K SRAM and a 256K Flash Rom are integrated in RCM2250, which improves the performance of pricipitation controller. MAX504 is used to produce the 4~20mA current output.

模拟量输入采集的信号有升压变压器一次电流、一次电压、二次电流、二次电压等，采用12位逐次比较式A/D转换器MAX187，兼顾采样速率和转换精度；中央处理单元采用以8位嵌入式处理器Rabbit2000为基础的RCM2250模块，外扩128KSRAM和256K Flash ROM，内部资源丰富，提高了控制器的整体性能；模拟量输出采用内带基准源的10位电压输出数模转换器MAX504，实现了标准4～20mA电流信号输出；控制器通过控制算法在相应开关量点上输出可控硅的触发脉冲。

The process of preparing a printing surface for electrotyping by first engraving on a wax-coated metal plate.

蜡模，蜡刻制版法一种通过先在涂蜡金属板上''。'刻字'。''来准备电版印刷''。'平面'。''的工序

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。