查询词典 luminous flux

These factors have seriously influenced the security and economical operation of the unit. This paper firstly summarizes the research background and the general situation of resarch about the overheating problem of boiler's high-temperature surface ,introduces the aspects and research findings in this field such as flux deviation、thermal deviation、flue gas velocity deviation at the exit of furnace and tee bends,et al.Then analyses the reason why high-temperature surfaces are overheated from such aspects as design、manufacture、operation, et al and points out one of the main factors that cause the overheating of reheaters is the flue gas velocity deviation caused by the remaining turning at the exit of furnace.

本文首先综合论述了课题的研究背景和目前电站锅炉高温受热面超温问题的研究概况，介绍了国内外流量偏差、热偏差、炉膛出口残余旋转、&三通&等研究方向和研究成果，然后从锅炉的设计、制造、运行等方面分析了高温再热器超温的原因，指出水平烟道内气流的残余旋转是造成再热器超温的主要原因之一。

A gap between the substrate and the electronic component is then filled with flux fill, and the electrode terminals of the substrate and the electronic component are bonded by reflowing the solder bumps.

然后，利用焊剂填充物来填充所述基板与所述电子组件之间的间隙，并且通过使所述焊点回流来接合所述基板的所述电极端子和所述电子组件的所述电极端子。

The RTS profile generally will result in brighter and shinier joints and fewer problems concerning solderability, since the solder paste reflowed in a RTS profile will still contain its flux vehicle throughout the entirety of the preheat stage.

在 RTS 曲线中，锡膏中的助焊剂媒介在整个预热过程中的存在，会促进焊料的润湿，因此 RTS 曲线可以用难以焊接的合金和元件上。

The secondary variables include the angle of the electrode to the work, the angle of the work itself, the thickness of the flux layer, and, most important , the distance between the current pickup tip and the arc also called electrode stickout.

次要变量包括电极相对于工作台的角度、工作台角度、焊剂层的厚度以及导电嘴和电弧的间距。其中电极干伸长是最重要的变量。

After the rainfalls, the heat flux of all soils, increased significantly with red soil increased the most.

降雨过后，各土壤之热通量明显上升，此现象以红壤最为显著。

On the base of 3D CAD software's fast modeling and meshing function, three kinds of radomes is modeled and meshed by tetrahedron firstly. And then the coefficients of electric flux density are received by fast moment method based on VIE.

本文首先借助三维CAD软件几何建模技术及网格离散技术，建立了三种结构的天线罩实体模型并用四面体单元离散，接着利用快速VIE-MoM计算出天线罩罩体区域的体极化电流，最终得到在罩体影响下的天线的远场辐射特性。

The magnetic-flux density as well as the coil response current curve and the pitch point magnetic field strength curve are obtained.

得出了发射器的磁力线、磁通密度分布图以及线圈响应电流曲线和节点磁场强度曲线。

And the pressure drop of liquid-layer is mainly influenced by weir height. With the increasing of weir height, the pressure drop increases. And it is independent of bare tower velocity and plate dimension. The correlation before was corrected as follows:ΔpL＝3911Z This paper analyzed the heat transfer coefficient between the outer wall of heat tubes and cooling water. And it was considered that plate geometries、weir height、bare tower velocity and heat flux density would affect the heat transfer coefficient.

而液层阻力主要受堰高的影响，堰高越高，液层阻力越大，与空塔速度和孔板的几何尺寸无关，对以往的公式进行修正后得到实验关联式如下：ΔpL＝3911Z 本文对加热管外壁与冷却水之间的换热系数进行了分析，认为孔板的几何尺寸、堰高、空塔速度以及热流密度均会影响换热系数。

The Pyromat CSB Radiation Stabilized Burner exhibits improved performance thanks to full premixing of fuel and air, surface stabilization through the use of radiant zones and high flux zones on the burner surface, and controlled flame shape above the burner surface.

Pyromat CSBTM 发热稳定炉展示了改良性能和火炉表面上可控的火焰形状。由于燃料和空气的完全预混合及通过使用火炉表面的发光区和高熔区达到的表面稳定性，才有了性能的改良。

To improve the response speed of on-off solenoid valve of big flux,detailed analysis on poppet valve is given and an on-off solenoid valve with movement of both spool and cover is designed.

通过对锥阀特性的分析，设计了一种阀芯、阀套同时运动的芯套双动高速开关阀，该阀增大了高速开关阀的开口度，提高了响应速度和流量。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。