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Mainly include: automatic, single, double-sided polishing machine, horizontal polishing machine, hydraulic surface polishing machine, hydraulic automatic single, double Grinding, Vertical Grinder Cutlery steak knife grinding machine, such as a total of three categories 18 mechanical grinding parabolic varieties.

主要有：自动单、双面抛光机、横向抛光机、液压曲面抛光机、液压自动单、双面磨刀机、立式刀剪磨床、牛排刀磨齿机等共三大类18个品种的抛磨机械。

The invention discloses a double-temperature double-chamber light wave sterilizing cabinet, which comprises the following parts: box, low-temperature chamber and high-temperature chamber in the box and control device, wherein the upper baffle rack is set in the low-temperature chamber, one lower baffle rack is set in the high-temperature chamber, the screen and keyboard are set on the box, the low-temperature chamber possesses first door with drawer switch and the high-temperature chamber possesses second door with drawer switch, the knife and fork rack is set on the bottom of first door, whose extending direction is vertical the door, the rotary lamp rack of ultraviolet tube is set in the low-temperature chamber, the light wave generating device is set in the high-temperature to emit light wave.

一种双温双室光波消毒柜，包括一箱体、设置在箱体内的低温室和高温室、控制装置，该低温室中设有一上隔物架，该高温室中设有一下隔物架，在箱体的上部依次设有显示屏、按键；该低温室具有抽屉式开关的第一门体，该高温室具有抽屉式开关的第二门体；在第一门体的底部设有一拉伸方向与门体拉伸方向垂直的、可以从左右两侧拉出的刀叉架；在该低温室内设有一设置有紫外线灯管的旋转灯架，在该高温室内设有一用于发射光波的光波发生装置。本发明消毒柜，使用范围广泛，功能齐全，消毒效果好。

In 2002, Kou proposed double exponential jump diffusion model, the most important is that double exponential jump diffusion model can generates a highly skewed and leptokurtic distribution, in addition, DEJD leads to tractable analysis pricing formulas for European and path-dependent options.

在2002年，Kou提出了双指数跳扩散模型，该模型最主要的特点就是能产生一个尖峰厚尾分布，更重要的是在双指数跳扩散模型下能给出易处理的欧式期权和奇异期权的解析定价公式。

The realization of double flow rate well testing techniques is descript in this paper and the way of well testing data interpretation is also provided from the normal analysis and double logarithmic curve.

描述了二流量试井工艺的实现，从常规分析和双对数曲线拟合两个方面，给出了二流量试井的资料解释分析方法，分析认为二流量试井同样可以计算出正常关井测压力恢复资料所解释的油藏及流体参数。

In the practical examples we optimized a simple double-curved arch dam with a single circle centerand equal thickness,and a complicated logarithmic spiral double-curved arch dam according to this designnotion,calculation results of the practical examples show that the design method is audio-visual and rational.

在实例中按照这种设计思路，对体形较简单的单圆心等厚度双曲拱坝和较复杂的对数螺旋线双曲拱坝分别进行了优化设计，计算结果表明该优化设计方法直观、合理。

This paper aims at the analysis and computation of double machine power systems frequency dynamics and provides the characteristics of double machine power systems frequency dynamics .

本文首先对双机系统频率动态过程进行了理论分析，给出了双机系统频率动态过程的特点。

The scheme takes the difference between USA grid and PRC grid into account, and can run above the rating parameter, and it would benefits for the J-TEXT operation on the rating parameters. The stator magnetic flux linkage vector oriented control method is defined for motor double-feed varying speed system, thereafter the ac converter scheme of 100MW motor-generator double-fed varying speed system is proposed.

针对中美电网之间的差异所导致的机组转速下降和储能不足等问题，设计了100MW脉冲发电机组的双馈调速系统初步方案，方案利用机组电动机转子为绕线式转子的特点，采用双馈调速的方法将机组转速提升至750rpm，以解决机组储能不足的问题。

Becouse the upper and lower detectors adopt double magnetic fields and double screen ,the sensitivity of the instrument is also greastly improved.

由于仪器的上下探头采用双磁场，双屏蔽式，所以它的灵敏度也有了大大的提高。

The results indicate that, in either single or double blowing, larger erosion rate is mainly found in the slag line and near purging plug area of ladle lining; erosion is accelerated when gas flow rate increases; the erosion rate of ladle lining with double blowing is larger than that of single blowing; erosion rate distribution is obviously different as gas flow rate increases; in heavy blowing, serious erosion centers around slag line area and expands gradually outwards; as purging plug gets close to lining wall, malconformation of erosion rate in ladle lining becomes more prominent and the erosion rate of lining near purging plug increases.

结果表明，无论单吹还是复吹，较大的蚀损速率主要分布在钢包渣线及近透气砖区域，吹气量的增大会加速钢包内衬的蚀损。采用复吹时，钢包内衬的蚀损较单吹时更快。随着吹气参数的改变，钢包内衬蚀损速率的分布状况差异明显。大吹气量下，较大的蚀损集中在渣线区域且呈环向扩展；透气砖安装距包壁越近，钢包内衬蚀损不均衡性也越突出，近透气砖内衬蚀损加重。

The paper analyzes the movement of a double inverted pendulum from the movement of the rigid body. The linear mathematical model of double inverted pendulum is constructed by mechanical Equation and the data of the actual plant.

本文从刚体运动学角度分析了二级倒立摆系统的运动，并利用有关动力学基础知识和倒立摆实验装置的实际数据对二级倒立摆系统进行了数学模型的建立。

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％。