环管

Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.

通过对试验环道上测试段相关数据的测试，对比分析测试段管壁有沉积物和无沉积物时测试段管壁内温度分布的不同表达式，根据能量方程建立了无量纲温度分布方程，利用贝赛尔函数推导出原油在层流状态下沉积层表面温度分布、沉积层热流密度、油流温度分布等相关温度场的计算公式，为研究蜡沉积规律，定性分析管路结蜡层厚度和制定合理的清管方案奠定了理论基础。

Analysis compared with different expression of temperature distribution on deposition and non-deposition in the tested inside-wall of pipeline,a nondimensional temperature function was founded to get a conclusion according to energy equation.Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.This method provides a theoretic basis on the theory law o...

通过对试验环道上测试段相关数据的测试，对比分析测试段管壁有沉积物和无沉积物时测试段管壁内温度分布的不同表达式，根据能量方程建立了无量纲温度分布方程，利用贝赛尔函数推导出原油在层流状态下沉积层表面温度分布、沉积层热流密度、油流温度分布等相关温度场的计算公式，为研究蜡沉积规律，定性分析管路结蜡层厚度和制定合理的清管方案奠定了理论基础。

The results showed that the initial temperature of methanation is different for the carbonaceous phases with different stability.

研究结果表明，不同稳定性的碳相在氢气氛下的起始甲烷化温度是不一样的，构成碳纳米管主体的六元环的碳，较之类似活性碳的杂形碳以及主要由五元环和七元环构成的碳纳米小颗粒，在氢气氛下是较为稳定的。

The influence of the opening ratio and the opening mode of the rectifying ring on the gas distribution effect was also measured with a calandria manometer.The flow through the pores of the center pipe could be uniformly distributed by adjusting the opening ratio of the rectifying ring.

利用压力排管研究了整流环开孔率和开孔方式对均布效果的影响，发现通过调整整流环周向开孔率可以实现内环射流流量均布。

Our product is a titanium , sparse noble metal material such as nickel, Mu , tantalum , zirconium processes; The tube , stick , silk , belt , board , foil , net , cake are encircled by reaching alloy products; Reaction equipment (500 L reaction boilers , titanium steel compound reaction boilers , titanium outside plate manage the warmup reaction boiler , the nickel steel compound reaction boiler); Heat exchanger (the titanium enumerates a pipe heat exchanger , titanium plate-type heat exchanger , the nickel heat exchanger , titanium helix plate-type heat exchanger); Compound board (titanium steel compound board , titanium copper compound board , titanium aluminium compound board finished product); The accessory and the heater titanium net are blue , the titanium flange , titanium nut titanium filter , titanium pump , titanium plate manage , the positive electrode , titanium centrifugal machine , titanium heater , various mistake are labeled with equipment and the accessory.

我们的产品是钛、镍、钼、钽、锆等稀贵金属材料加工；管、棒、丝、带、板、箔、网、饼环及合金制品；反应设备（500L反应釜、钛钢复合反应釜、钛外盘管加热反应釜、镍钢复合反应锅）；换热器（钛列管式换热器、钛板式换热器、镍换热器、钛螺旋板式换热器）；复合板（钛钢复合板、钛铜复合板、钛铝复合板成品）；配件及加热器（钛网蓝、钛法兰、钛螺母钛过滤器、钛泵、钛盘管、阳极、钛离心机、钛加热器、各种非标设备及配件。

Companies in our 10 years of production of holiday lights, LED Lighting Products, based on volume production and is now gradually improve the following LED products; full-color digital rainbow pipe, guardrail lamp profile, full-color digital tube smart screen ads, T5 tubes, vibrant wall color, pixel display, high power lighting, LED lamp, high power cast light, point light source series, wash the wall lamp, crystal lamp lens contours, LED pixel light epoxy, the ceilings and wall lights, Cup lamp, bulbs, Crystal cellular foam, crystal lamp string series, underwater lights, buried lights, brick lights, LED advertising signs module, Rainbow Designs tube lamp series, star lights, net lights, curtain lights and Christmas light string; also Exposure has LED lights, strobe light bulb series, fuse lamp belt; the company also produces full-color LED display control system, LED solar lawn lamp, LED series lighting and accessories, as well as fiber-optic light source generator series.

公司在秉承10多年的生产节日装饰灯、LED灯饰产品的基础上，目前正量产及逐步完善以下LED系列产品；全彩数码彩虹管、护栏轮廓灯管、全彩智能数码管广告屏、T5管、动感彩屏墙、像素显示屏、大功率射灯、LED台灯、大功率投光灯、点光源系列、洗墙灯系列、水晶透镜轮廓灯、LED环氧像素灯条、天花幕墙灯、灯杯、灯泡、水晶蜂窝泡、水晶灯串系列、水底灯、埋地灯、地砖灯、广告标志发光模块、彩虹管图案造型灯系列、星星灯、网灯、窗帘灯及圣诞灯串；还有LED曝光灯、频闪灯泡系列，保险丝灯带；公司还生产LED全彩显示屏控制系统、LED太阳能草坪灯、LED系列灯饰配件以及光纤与光源发生器系列。

The company is currently in volume production and the gradual perfection of the following LED products; full-color digital rainbow pipe, guardrail lamp profile, full-color digital tube smart screen ads, T5 tube, vibrant wall color, pixel screen, high-power spotlights, LED table lamp, high power cast light, point light source series, wash the wall lamp, crystal lamp lens contours, LED pixel light epoxy, the ceilings and wall lights, lamp cups, light bulbs, crystal cellular foam, crystal lamp string series, underwater lights, Buried lights, brick lights, LED advertising signs module, Rainbow Designs tube lamp series, star lights, net lights, curtain lights and Christmas light string; also LED Exposure lights, strobe light bulb series, fuse lamp belt; company also manufactures full color LED display control system, LED solar lawn lamp, LED series lighting and accessories, as well as fiber-optic light source generator series.

公司目前正量产及逐步完善以下LED系列产品；全彩数码彩虹管、护栏轮廓灯管、全彩智能数码管广告屏、T5管、动感彩屏墙、像素显示屏、大功率射灯、LED台灯、大功率投光灯、点光源系列、洗墙灯系列、水晶透镜轮廓灯、LED环氧像素灯条、天花幕墙灯、灯杯、灯泡、水晶蜂窝泡、水晶灯串系列、水底灯、埋地灯、地砖灯、广告标志发光模块、彩虹管图案造型灯系列、星星灯、网灯、窗帘灯及圣诞灯串；还有LED曝光灯、频闪灯泡系列，保险丝灯带；公司还生产LED全彩显示屏控制系统、LED太阳能草坪灯、LED系列灯饰配件以及光纤与光源发生器系列。

The results indicate that the difference between the Y-shaped CNT and the pristine one is remarkable due to the influence of the defects in the junctions of the former.

研究结果表明，由于缺陷环的影响，Y型碳纳米管与直型管的性质明显不同，而且，Y型碳纳米管的结构和性质与分支管长度存在一定的关系。

Kit consists of: Seat, Stem assembly, Spring, Two piston o-rings, Flow tube O-rings and Cover O-ring.

组件包括：阀座，阀杆总成，弹簧，两个活塞O形环，流量管O形环和阀盖O形环。

The numerical results were in good agreement with the measured results. The experimental and numerical results show that the vortex ring was induced by baroclinic effect and Helmholtz instability in the vicinity of the thruster exit after the donation wave exhausted the tube. The intensity, shape and location of the suspended shock varied when the shape of the vortex ring changed.

爆轰波溢出爆轰管后，斜压效应和Helmholtz不稳定导致涡环的产生，同时在流场中形成止于涡环的悬吊激波，涡环形状的变化又引起悬吊激波的强度、形状和位置的变化。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。