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Abstract: The foundation and simulation of aeroengine starter for flight simulator is discussed in this paper.
中文意思:
文摘:在飞行模拟训练器的研制中,发动机的起动过程是需要重点研究和模拟的过程之一。


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Abstract: The features and compressing metheds of the data of multichannel analyzer have been studied and described in this paper.Two methods of dynamic ratio compression and equal count compression have been set up to realize the compression and real-tim文摘:对多道数据的特性和压缩传送问题进行了详细研究,提出了用动态比压缩方法和等计数压缩方法完成多道数据的远程实时无损压缩传送,给出了方法原理和实验结果。
Abstract: The features and trends of building-block machines and flexible production lines consisting of those machines both in China and oversease are presented.Also discussed are the critical issues for flexible production line consisting of building-bl文摘:介绍了国内外组合机床及其生产线柔性化发展的特点,及目前国内拖拉机生产企业实现组合机床生产线柔性化应解决的关键问题。
Abstract: The forced state in key parts and their lifetime,the volume of high pressure chamber and ratio of pressure,the length of high pressure stroke and pressure stability,the relations between the deformation of high pressure chamber and temperature f文摘:通过对高温高压合成金刚石3种主要装备在关键部件受力状况与使用寿命、高压腔体积与压力利用率、高压冲程大小与压力稳定性,高压腔变形与温场、压场的关系等方面的比较,分析了3种主要装备在技术难易程度、适用性选择和投入产出比的差异;强调了我国金刚石行业要改变当前只能生产中低档金刚石的现状,向生产高品级锯片级金刚石的方向发展,与国际接轨,应该走大型化两面顶的道路。
Abstract: The forest-steppe ecotone in northern Hebei and eastern Inner Mongolia is characterized by high biodiversity.文摘:河北北部、内蒙古东部森林-草原交错带富于高的生物多样性。
Abstract: The forming mechanism of the cross section of unbroken metal fibers manufactured by the combined cutting of big inclination cutting and chip pulling cutting is analyzed.文摘:分析了采用大刃倾角-拉屑复合切削方法制造连续型金属长纤维时纤维横截面的形成机理。
Abstract: The foundation and simulation of aeroengine starter for flight simulator is discussed in this paper.文摘:在飞行模拟训练器的研制中,发动机的起动过程是需要重点研究和模拟的过程之一。
Abstract: The four common location methods of active part of omnisealed transformer with corrugated tank are introduced, compared and analysed. Some reasonable location methods are given.文摘:介绍了波纹油箱全密封变压器器身的四种常见定位方法,并对其进行了分析比较,从而给出了较为合理的定位方法。
Abstract: The four configurations of RRP simple opened-chain have been analyzed.The accomplished method of kinematics analysis has been gived.It provides the fundament for optimization and accurate analysis of mechanisms.文摘:深入分析了RRP单开链的四种装配构形,给出了其统一完整的运动分析方法,为机构选优及运动分析提供了依据。
Abstract: The free radical alkylation of pyridine with fatty acids in the presence of acidic solvent,a series of derivatives of α-monosubstitute prydine were synthesized using ammonium persulfate and silver nitrate as catalyst.文摘:吡啶与脂肪酸在酸性环境中用过二硫酸铵和硝酸银催化,发生自由基烷基化反应,得到产物主要是α-单取代吡啶。
Abstract: The friction types and wear mechadism of high-Chromium cast iron composite is discussed.The experimental results show that this compositc pipeline has good economic benefit,applicability and popularization in coal separation medium pipeline.文摘:从磨损类型和耐磨机理等方面,对高铬耐磨铸铁复合材料进行了探讨,试验结果和经济效益分析表明,这种高铬耐磨铸铁复合管对于选煤介质管路有良好的适用性和推广应用价值。
Abstract: The function expression for coefficient of pipeline's local head loss was presented through optimizing fitting to coefficient values listed in tables.The fitting accuracy is acceptable.文摘:采用优化拟合法通过对图表中有关数值的拟合,给出了管道阀件阻力系数的函数表达式,具有较高的拟合精度。
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