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The system is a high speed powder Hame spraying system,equipped with high precision powder feeder and oxygen acetylene name heat source,with compr- essed air to improve the Hame heat utilization The system consists of three pads:high energy torch,high precision powder feeder and gas supply Unit.

该系统是以氧乙快火焰作热源、用压缩空气提高火焰热能利用率、配备高精度送粉器送粉的高速火焰粉末喷涂装置。由高能喷涂枪、高精度送粉器和供气装置三部分构成。

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验，运用工艺实验和理论分析相结合的方法，重点做了以下工作：(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因，并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理；(2)以混合硅粉的电火花加工为例，实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律，并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据；(3)在实际加工中，由于粉末的加入使放电间隙变大，这使得混粉电火花加工的尺寸精度难以控制，本文利用三元线性回归的方法，在实验数据的基础上，建立了两种电火花加工过切量的计算公式；(4)将正交试验法应用于混粉电火花加工实验研究，并通过对实验指标极差的直观分析，得出各电参数对加工指标影响的敏感程度。

Single-acting baking powder produces all of its bubbles when it gets wet. Double-acting baking powder produces bubbles again when it gets hot. If you want to prove to yourself that this is how baking powder works, simply try mixing a teaspoon of baking powder into a cup of hot water.

单一反应的泡打粉在混合水后释放出所有的泡泡 2次反应的泡打粉遇热后能够再次释放二氧化碳如果你想自己验证一下泡打粉的工作原理，很简单，在一杯热水中加入一小勺泡打粉。

Under the epoxy topcoat, the corrosion rate of the spherical zinc is faster than that of the lamellar zinc. The diffusing behavior of water through multilayer ZRP-base organic coatings with zinc dust and zinc flake was studied by EIS techniques.

在富锌涂层上覆盖面涂层，球形有机富锌涂层中Zn粉的反应活性比鳞片有机富锌涂层中Zn粉的反应活性高、球形有机富锌涂层中Zn粉的反应速度比鳞片有机富锌涂层中Zn粉的反应速度快。

The results indicate that the addition method of zirconia has great influence on the properties of the porcelain powder.

结果表明，后一种方法不利于提高烤瓷粉的性能，而前一种采用一次性合成的复合烤瓷粉中，氧化锆的加入既有利于烤瓷粉的弯曲强度的提高，又有助于调节烤瓷粉的热膨胀系数。

Ammonium paratungstate has a great effect on the properties of the blue tungsten oxide , and blue tungsten oxide has a great effect on tungsten and tungsten carbide powder also; The tungsten carbide powder of good quality can be made from APT or blue tungsten oxide treated by a special process.

仲钨酸铵对蓝钨性能影响较大，而蓝钨物理性能对钨粉和碳化钨粉的性能影响也较大，通过对APT煅烧前或煅烧后进行特殊处理优选蓝钨原料，可以制取优质碳化钨粉。

On this paper, DE of PLM to goat, protein digestibility and digestable protein content were determined, and rumen degradation characteristics of dry matter and protein in alfalfa meal and PLM, and the feeding result of PLM to lamb were studied.

本论文测定了柠条叶粉对羊的消化能、蛋白质消化率和可消化蛋白质含量；比较研究了柠条叶粉和苜蓿草粉的干物质和蛋白质的瘤胃降解特性；探索性的研究了柠条叶粉对羊的饲喂效果。

For example, in each of the tungsten powder mixed drop-off workers and install a RF controller, each controller is a unique number. each equipped with tungsten powder in the barrel drop-off and posted an e-label products for marking messages the workers in each station equipped with electronic information workers marking label It is also the center of the RF controller can be read.

例如在对钨粉和炭粉混合时每个工位安装有射频控制器，每个控制器有一个唯一编号，同时在每个装有炭粉和钨粉的桶上贴有电子标签，用来标识产品信息，在每个工位的工人配有标识工人信息的电子标签，它也可以被这个工位的射频控制器读取。

Firstly, the artist holds the bag and applies the slurry on the wall according to the u nderdrawing, and then adds gold foil on the surface of the slurry picture, thereby forming a golden pattern relieved on the wall, glorious and glamorous. And the white powder used is from quality oyster shells or minerals extremely finely ground, thereby giving rise to even and mellifluous lines.

沥粉贴金的具体做法是将沥粉泥浆装在有收缩力的囊袋中，外端套上铜质细管，按照所画沥粉线的粗细，制成大、中、小三种沥口，手握囊袋依底稿画样把沥粉沥于壁上，然后贴金箔于沥粉的表层，从而形成高出壁面的金色图案，使画面更加绚烂夺目。

Microsilica silica fume and micro-production processes is the difference from natural quartz silica (SiO2) or fused silica (natural quartz at high temperature melting, after cooling the amorphous SiO2) by crushing, ball milling , flotation, acid purification, high purity water treatment by multi-channel processing of the powder.

硅微粉与微硅粉的生产流程上的差异硅微粉是由天然石英（SiO2）或熔融石英（天然石英经高温熔融、冷却后的非晶态SiO2）经破碎、球磨、浮选、酸洗提纯、高纯水处理等多道工艺加工而成的微粉。

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