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The other aliquot was hydrothermally treated at 200℃,and then it was also used for fabricating the gas sensors(denoted as "pre-treated sensors").

SnO2气敏传感器从结构上分为厚膜型、薄膜型和烧结型,其中烧结型和厚膜型是当今实用气敏元件的主流。

The basic principles for largely aperture PEPC with thinness crystal plane have been expounded.2. It is the first times to use horniness anodize aluminum film as the isolator of plasma in P.R.China. The life-time and breakdown voltage of anodize aluminum film have been tested.

国内首次成功将硬质阳极化膜用于等离子体绝缘,实验研究了阳极化膜的寿命和击穿电压特性;将等离子体绝缘的最低阳极化膜厚优化到了60μm(美国LLNL的选择为100μm),解决了国内工程实施的可行性问题。

Ultra high strength liquid membrane is made of LDPE and linear polyethylene and to a certain percentage of milky white pellets, after blowing equipment, is now available in the market of milk producing white membrane products include film, black and white film, conserving high barrier film, Business card printing and membership card making ink generally use the polyamic class innovativeink, which of the many types of ink is more affinity with polyethylene, to make the business card printing and membership card must be produced colorfast on liquid membrane of manufacturing processes to strictly control and testing.

超矮强度固体膜是由矮压聚乙烯和线型聚乙烯再配以必定比例的乳白母粒,不纬呼膜摆设创作不收明而不败,不隐阛阓上的奶膜产物有乳白膜、彩色膜、珠平膜、矮阻隔不厚膜等,制卡和会员卡制作油不朱凡是拔取聚酰胺类油不朱,它在成群典范榜样油不朱洋是与聚乙烯较为亲和的一栽,给使制卡和会员卡制作不掉色不离务必差固体膜的各道出产工序增以澈底的把持和检测。

This is the reason that the blue white passivating film is too thin.So,in order to settle the problem,a kind of process to acquire compare thick passivating film,high corrosion resisting WX-3TC trivalent chromium blue white desensitizer and its means were successfu...

为此,在增加蓝白色钝化膜的厚度方面进行了努力,终于研制成功了一种能获得较厚、具有高耐蚀性钝化膜的WX-3TC三价铬蓝白色钝化剂及其钝化工艺,盐雾试验出现白锈的时间可达240h以上,从而解决了蓝白色钝化膜耐腐蚀性差的难题。

Determination of the available film thickness meter, the diameter is 3 0 m m Beanies pressure on silk online, let photoptic partⅱ fine regional contact and the thick-film irstrument sensor head alignment Beanies pressure on silk online, on the LCD screen can be readout readings (note that prior to the measurement of zero).

测定厚度时,可用膜厚仪进行,使用时将直径为3 0 m m 的金属薄片压在丝网上,先让未涂布感光胶的区域接触薄片,将厚膜仪的传感头对准金属薄片压在丝网上,在液晶显示屏上读出读数即可。

Etchant surface tension: because everything has a certain amount of surface area so liquid surface as if there is a layer of thin films, this film a molecular-level of attractiveness to shrinking trend, in order to maintain this balance, of surface tension in the gelifen surface must be enclosed in a suitable and surface force tangent to the surface area of, and this is no longer shrink and surface force called the tangent to the surface tension.

蚀刻液的暗地压辛:因为任何物体都有必定的暗地积因此不流体暗地不离仿佛有一层放宽的不厚膜,这层不厚膜具有一股分子级的边向推斥辛,使其有关上的趋向,为了保持这安详的暗地不均,在暗地周界上务必增一不合的和暗地相切辛才能使暗地保持必定的背积,不一再关上,这种和暗地相切的辛叫暗地压辛。

For carrying out a small physical volume and high reliability of the motor driving and control,by using HIP4081 chip and ALN hybrid integrated technology,a hybrid integrated technology H bridge circuit based on HIP4081 is designed to control bidirectional circumrotation and speed regulation of the motor.

摘 要:为了实现小体积、高可靠的电机驱动与控制,利用HIP4081专用芯片和ALN厚膜混合集成技术,设计一种基于HIP4081的厚膜H桥电机驱动电路,完成了H桥式驱动电路对电机双向转动和调速的控制。

for carrying out a small physical volume and high reliability of the motor driving and control,by using hip4081 chip and aln hybrid integrated technology,a hybrid integrated technology h bridge circuit based on hip4081 is designed to control bidirectional circumrotation and speed regulation of the motor.by practical application,the bidirectional circumrotation/speed adjustment of motor are realized safely and reliably.the products has a small physical volume,fast heat transmission,high efficiency and can operate properly in severe environment.it can enhance the reliability of the drive circuit and the system,and adapt to both military and commercial usage.

摘 要:为了实现小体积、高可靠的电机驱动与控制,利用hip4081专用芯片和aln厚膜混合集成技术,设计一种基于hip4081的厚膜h桥电机驱动电路,完成了h桥式驱动电路对电机双向转动和调速的控制。经实际应用,该电路不仅安全可靠地实现了电机的双向转动和调速功能,且产品体积小,导热性能好,效率高;还能在恶劣的使用环境下安全工作,提高了驱动电路和系统的可靠性,适合军、民两用。

Oil film thickness along the piston skirt in motored engine was measured, and the comparison with theory result was given.

最后在实验研究中,本文国内首次在活塞裙部油膜厚度中采用了激光荧光诱导的测试方法,主要工作是:分析了激光荧光诱导法的基本原理,建立了测膜厚的基本定量关系模型,通过实验分析了膜厚测试的各种影响因素,通过实验对不同香豆素荧光光谱和激发光谱特性进行了分析,通过实验确定了选取香豆素的种类和溶液浓度的基本原则,自主开发了以光纤为光学光路的测试系统并对系统进行了标定,对内燃机冷拖动状态的活塞裙部进行了实测,并与理论测试结果进行了对比。

PbO-B_2O_3-SiO_2 glass reacts with bismuth ruthenate and lead ruthenate is produced as transition layer. The transition layer can make the interface gradually change and the properties of resistors are improved at the same time. Based on the study above, the way to get series of pastes was developed.

在上述研究工作的基础上,总结提出Bi_2Ru_2O_7/Ag系厚膜电阻浆料实现阻值系列化的方法:改变功能相中银的百分含量和浆料固相中功能相的百分含量确定电阻膜层的方阻值和电阻温度系数;改变复合无机粘结相中两组元的配比实现厚膜电阻重烧变化率的可控调整,并对方阻值和电阻温度系数进行微调。

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