High expansion foam extinguishing system has the features of high output, low water damage, high reburn resistance, and low cost, it extinguishes class A and class B fire by fully flooding and covering, and it is efficient in controlling floating fire by liquefied petroleum gas and liquefied natural gas.

高倍數(shù)泡沫滅火系統(tǒng)具有發(fā)泡倍數(shù)高、水漬損失小天天做天天干天天日天天舔、抗復燃能力強、成本低等特點，以全淹沒和覆蓋的方式撲滅A類和B類火災一级欧美片免费播放视频，還可以有效地控制液化石油氣和液化天然氣的流淌火災。

It abandon the traditional measure that divide the development course of the scientific and technological park according to the time, and redistrict their development courses according to the logic route that the park grew up, then divide development course into three stages: embryonic stage, it introduce domestic and international agricultural new and high technology , advanced equipment directly, engaged in running an enterprise on a commercial way, use the new and high technology to carry on precise, deep processing or storing and keeping fresh to the high-quality agricultural and animal products, do not have cooperation with local peasant basically; the stage of growing up, the park brings along local peasants production, does not confine to the production of the industrial base in the park again, a kind of nonstandard cooperative form has appeared between peasant and park; at ripe stage, the park sets up the training center of agricultural science and technology, carry on the professional technical training to the industrial base and peripheral peasant, spread through three kinds of diffusion effects, such as radiation, the grade

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On the basis of existing study and report, the types of high temperature solid lubricants are renewedly introduced, and the depositing processes of high temperature solid self-lubricant coatings are explained. The concept of designing coatings is introduced, and trend of development of high temperature solid self-lubricant coatings is pointed out.

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The rheologies of two types of high-density water-based drilling fluids including the fresh water-based drilling fluid and salt water-based drilling fluid were tested at high temperatures of 50℃, 80℃, 120℃, 150℃, 180℃, 200℃ and 220℃ respectively, and at high pressure of 5MPa using Fann50SL Reometer.

以室內研制的抗高溫高密度淡水基和鹽水基鉆井液為基礎十八岁黄色国产网站，采用Fann50SL高溫高壓流變儀對鉆井液在不同溫度下的流變性進行了測試。

Silicon powder, processed by high-quality silicon metal lump, is silver-gray or dark gray with high melting point, good heat resistance, high resistively and oxidation resistance.

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In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.

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It is well known that the large lattice mismatch (16%) and thermal expansion coefficient mismatch between GaN and sapphire substrate are the main origins of TDs. By new growing technique of LEO, we acquired high quality GaN films almost free of TDs. The stress characteristics in GaN films with MLTB growing technique is dependent on growing systems and conditions, and the changes of stress and dislocation density are rightabout; Combining buffer layers of high temperature and low temperature is first developed to growing GaN films with low dislocation density, and the mechanism of lowering TDs density is that the first buffer layer of high temperature can make nuclear in second buffer layer of low temperature bigger. This technique also can restrain yellow luminescence effectively.

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Characterized by high technology综合图片精品第三页、high input and high rist, Pharmaceutical Industry in China through a very rough road, has become an important industry which promotes the GDP.

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Characterized by high technology美国一级牲交黑大粗硬大片学校、high input and high rist, Pharmaceutical Industry in China through a very rough road, has become an important industry which promotes the GDP.

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To synthesize by 20% carbon fiber,80% high strength glass fiber,high-temperature resin binder,plus friction materials with high performance;working temperature:≥200℃ drying department,pressing department,hard rool in network department.

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