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The furnace cover use stainless steel insulation cover. The cover panel and the tank body use double water cooling vacuum rubber sealing. 60 KW above Pre-Pumped Vacuum and Protective Atmosphere Furnace cover installated stainless steel vacuum sealed fan which will enable inner temperature uniformity,,furnace panels are installed on the vacuum interface, Interface sent to protect the atmosphere, vacuum Pressure Gauge.

炉盖采用不锈钢内保温炉盖，炉盖面板与罐体采用双水冷真空橡胶密封，60KW以上预抽真空保护气氛电炉盖上安装有真空密封不锈钢风机，可使罐内温度均匀，电炉面板上安装有抽真空接口，送保护气氛接口，真空压力表。

In this paper, the basic principle and the power factor of conventional SERDS are discussed. Aiming at its shortage of low power factor, boost chopper type SERDS is adopted. The equivalent circuit of the new scheme is built up, and then vector diagram is used to analyze the power factor of the system, also the harmonic distortion of the system is discussed. The experiment device is established base on a 380F/7.5 kW induction motor and a passive soft switching scheme is applied in order to improve the working condition of IGBT. At last, the experimental results are shown.

本文在分析传统串级调速原理的基础上，对系统的功率因数进行分析；针对传统串级调速系统功率因数低的缺点，采用升压斩波式串级调速系统加以改进；建立了升压斩波式串级调速系统的等效电路并采用向量图法对该系统的功率因数进行详细分析；分析了系统的谐波情况；构建了以7.5kW／380V电机为调速对象的升压斩波式串级调速系统实验装置，给出相应的实验结果；针对斩波器中IGBT处于硬开关状态的缺点，应用无源无损软开关技术予以改善，包括对软开关电路工作原理的分析、参数的设计并给出相应的实验结果。

As a result, China is rich in water-power resources, leading the world in hydropower potential, with reserves of 680 million kw.

因此，我国有丰富的水资源，电力资源，领导世界的水电潜力，储量六万八点零零零万千瓦

At high heat flux, due to the larger pores in the porous structure, the biporous surface really prolongs the critical heat flux to 869 kW/m2, which is about 2.2 and 1.3 times over a smooth and monoporous surface, respectively.

单孔径毛细结构性能提升的原因在於树枝状粉末拥有较广大的热传面积及通道，能够加速薄液膜的蒸发速率。

Automatic Grinder with pneumatic carriage advance,with multiple angles seat housing knifes.3 Types of grinder wheels.1 Corindon coup bell Norton,1 Corindon for Vee gouges HSS one Vee Borazon Diamond for Tantung vee gouges.motor 1.5 Kw at 2800 RPM.

全自动气压控制调节，可以一次性同时磨两把刀具，随机可配备3种磨刀石。1杯型磨具，1个磨高速钢刀用磨刀石，1个磨钨钢刀用的金钢石磨刀具。马达为1.5千瓦，转速可达2800RPM。

The surface is covered with solar cells: an 11.1-kW photovoltaic system made of 40 single-crystal silicon panels on the roof and about 250 thin-film copper indium gallium diselenide panels on the sides that are expected to produce an incredible 200% of the energy needed by the house.

表面覆盖着太阳能电池：1 11.1千瓦光伏系统的40单晶硅小组提出的屋顶和大约250薄膜铜铟镓二硒对那些预期将产生双方面板令人难以置信的200％的房屋所需的能量。

Small scale gasifier system (10-30 kw) would be appropriate for multitudes of village applications in developing countries.

小规模气化系统（10-30万千瓦）将用于在发展中国家的应用与众多村适当。

Kw. 6 carries a gyroscopic compass, he maintained that it is impossible to attack at night because of vision difficulties.

尽管一个战俘提到&虎&式坦克装有一个回转定位罗盘，他认为因为视野问题在夜间进攻是不可能的。

A Ni-Cu based cladding was thus deposited, where the powdered Ni1015 was provided for the laser cladding process to form a smooth surface layer bonded metallurgically with Cu substrate, whose grain-refining microstructure is homogeneous, compact, void-free and crack-free.

用5 kW CO2激光器，通过优化激光工艺参数，在结晶器用铜合金表面预置添加SiC晶须的镍基自熔合金(Ni1015)粉，制备出表面平整、组织均匀致密、无气孔和裂纹等缺陷、与基体为冶金结合的Ni-Cu激光熔覆层。

A cooperative study project of low pressure pipe lines water transfer irrigation technology was funded by the Water Conservancy Bureau of Ji-ning City, the Farmland Ir- rigation Institute of Water Resource Min...

至1991年底，全市共完成地埋低压石屑混凝土管道输水灌溉面积74kha，占全市井灌面积的1/3，取得年节水量277百万m~3；年节电28.86百万kW·h；年增产粮食100百万kg；年总效益50780千元的经济效益。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。