真空

We offer such professional products: salt spray test chamber, sulfur dioxide test chamber, high and low temperature test chamber, temperature shock test chamber, constant temperature and humidity test chamber, high and low temperature alternating temperature humidity test chamber, UV weather resistance test chamber, xenon lamp weather resistance test chamber, air ventilation climatic test chamber, sand and dust test chamber, box rain test chamber, pipe rain test device, drip box, ozone climatic test chamber, mould test chamber, precise drying test chamber, vacuum oven, large step-into test chamber, medicine stability test chamber and vibrating table.

我司专业生产产品有：盐雾试验箱高低温交变湿热试验箱/精密干燥箱/真空烘箱/温度冲击试验箱/药品稳定试验箱/臭氧老化试验箱/紫外耐候试验箱/氙灯耐气候试验箱/换气式老化试验箱/砂尘试验箱/箱式淋雨试验箱/摆管淋雨试验装置/滴水试验装置/二氧化硫试验箱/霉菌试验箱//盐雾试验室/大型步入式试验箱//温湿度振动试验箱/温度快速变化试验箱/单翼跌落试验机/温度老化试验室防锈油脂湿热试验箱振动试验台。

The investigation results show that, doped by the rare earth element, the photoemission current of the BaO thin film increases about 50%.

研究结果表明，掺入稀土元素可使真空沉积制备的BaO薄膜的光电发射能力提高约50％。

Results of experiment and theoretical analysis indicate that free water movement in wood under floating pressure consists of two parts, one is mass movement caused b capillary pressure, the other is the movement of water vapor produced by evaporation or ebullition of free water, and the latter dominates the moving process of free water.

试验结果和理论分析显示，在真空－浮压干燥过程中自由水的输运由两部分完成，一部分为毛细管压力下液体的团块迁移；另一部分为在压力梯度下，由于压力波动而引起自由水的蒸发或沸腾后所产生的水蒸气的迁移，且后者在自由水的迁移过程中占主导地位。

Experimental results and theoretical analysis showed that moisture movement within cooked meat during vacuum cooling consists of two parts.One was water migration within cooked meat caused by chemical;the other was water vapour movement produced by evaporation or ebullition caused by pressure drop.

试验结果和理论分析显示，真空冷却过程中的水分迁移由两部分组成，一部分为由于产品内部温度不同造成不同的化学势引起食品内部的水分转移；另一部分为由于压力降低引起的水分蒸发或者沸腾后所产生的水蒸气的迁移。

Edwards has nearly 100 years of experience in supplying essential vacuum systems and related products.

是一家具有近百年历史的企业，可以为您提供理想的真空系统和相关产品。

The ejective flow produced by attitude control engine creates serious contamination to spacecraft, which can be classified, according to property, into mechanical,thermal, depository and chemical contamination.

姿控发动机真空环境下工作产生的喷流对航天器造成的污染非常严重。根据污染的性质，羽流污染又分为机械污染、热污染、沉积污染和化学污染。

It is an advanced welding tec hnol ogy to solve welding spatters of titanium alloy pressure vessels. Such a w elding method is held in vacuum condition and with a little argon gas through a hollow cathode to start a arc.

这是为解决钛合金容器焊接存在的飞溅问题而发明的一种先进的焊接工艺方法，在真空条件下，采用管状空心阴极，通入少量氩气，从而引燃电弧进行焊接。

Our products are indispensable equipments in supplying vacuum pessure soufce os air for press,packing,cigarette,cereals,electonics,textile,enviroranental protection and oyher industries.

本产品为印刷、包装、卷烟、粮食、灯泡、电子、纺织、环保等行业提供真空压力气源必不可少的设备。

At the same time the differences and connections among electric potential energy, electrostatic energy and electrical energy are expounded.

本文从电势能的定义出发，在较为一般的情况下，导出了真空中和电介质中静电场的能量与能量密度公

Both both for forty years manufacture experience,patent products trolley electric heater and forevacuum shielding gas atmosphere electric heater export Japan, America, Indonesia, Singapore, Thailand grade heap state.

40年制造经验，专利产品台车电炉和预抽真空保护气氛电炉出口日本、美国、印尼、新加坡、泰国等许多国家。

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