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Abstract: As the heart of TWT，the structure stability of grided electron gun directly affect pulse output performance of TWT，and the structural reliability under vibration stress are especial-ly important for today's manufacturers.
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摘要：栅控电子枪作为行波管的“心脏”，其结构的稳定性直接影响着管的脉冲输出性能，特别是在振动应力下的结构可靠性更是当今生产单位关注的重点。 |
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Abstract: As the medicine science develops and improves,some human acquired diseases have been controlled on the whole.But the incidence of genetic diseases and congenital malformation rises gradually and the importance of their treatments appears by degr
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文摘:由于医学科学的发展和进步，一些人类后天的疾病基本上得以控制，而遗传病和先天畸形的发病率则逐渐提高，并逐渐显示出其重要性，要想提高人口素质，就要从控制和改变遗传因素的方面做起，了解遗传病的种类，发病原理，再利用现代的各种高新技术，找到和提出治疗的方法，如产前诊断、遗传工程等，从而达到预防和治疗遗传病的目的。 |
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Abstract: As the most critical factor of MPM process, the groove design of fewer stand mandrel retained MPM significantly affects the rolling course as well as product quality.
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文摘:少机架限动芯棒连轧管机孔型设计是连轧管工艺的核心，对轧制过程的建立和产品质量起着极其重要的作用。 |
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Abstract: As there were leak on contact place between shaft and rotor-body in built-up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil-sealed sliding vane rotary vacuum pump.
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文摘:组合式空心转子由于轴头与转子体之间的结合面存在着渗漏，使泵的抽气效率性能下降，从而影响其在应用中的效率。 |
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Abstract: As viewed from developing RIT,RIT are discussed on the following points such as the effective absorbance dosage, selection of administration way, application in clinical experience both abroad and at home， as well as the problems met in clinical
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文摘:从发展放射免疫治疗的必要性出发，着重叙述其治疗肿瘤的有效吸收剂量、多种给药途径的选择以及在国内、外临床实践中的应用，并简述其在临床应用中所面临的问题及解决策略。 |
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Abstract: Assistant design with general figure instruments which can run in general micro computer is selectable scheme in the departments which can not apply special instrument and software system to carry out afforestation design and some field in which
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文摘:对于尚不具备专业设备和专业软件系统开展造林作业类设计的部门，以及不宜运用专业软件的局部领域，利用在普通微机上运行的通用图形工具进行辅助设计，是一种可选的方案。 |
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Abstract: At first,a new type of intelligent,micro-consumption and portable resistance welding checker is introduced,and then the hardware and software of the checker depending on single chip micro-controller is proposed in this paper.Finally,the principl
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文摘:详细介绍了一种新型智能微功耗便携电阻焊测试仪，并给出了以单片机构成的智能微功耗测量系统的硬件电路及软件流程，阐述了微功耗系统的设计原则与方法。 |
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Abstract: At first,the shaking table test of a gravity pier model was done.The comparison between the test data and the theoretical analysis results of the model showed that they are identical to each other.The dynamic model of a whole bridge with gravity
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文摘:首先进行了重力式桥墩模型振动台模拟地震试验，试验与理论分析结果基本一致;然后建立了采用铅芯橡胶支座的重力式桥墩桥梁全桥体系动力分析模型,计算分析了铅芯橡胶支座对桥梁的减、隔震作用及重力式桥墩的抗震性能，提出了重力式桥墩桥梁的抗震措施。 |
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Abstract: At first,this paper analyces the open defect of CMOS RAM address decoder,it comes out that one type open defect cannot be detected by march test algorithm,and then we give the test method of this type undetectable fault and the design scheme wit
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文摘:对CMOS存储器中地址译码器的开路故障进行了分析和分类，得出了其中有一类开路故障不能用常用的测试算法可靠的测试出，给出了测试该类开路故障的测试方法以及针对该类开路故障的容错性设计方案。 |
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Abstract: At measurement of the temperature increasing and analysi s of gas composition in the pellet layers during reduction of iron ore-coal pel let in air,it is found out that released volatile from the pellet is fired when the pellet is heated to the
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文摘:通过测量铁矿-煤球团在空气中还原时料层温度上升规律和气体成分变化情况，得出了球团被加热到挥发分开始激烈析出温度时，挥发分开始燃烧，放出的热是将球团加热到碳的直接还原开始激烈进行温度时，碳的还原产生的CO气体开始燃烧，提供球团还原耗热. |
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Abstract: At present, the main means for time transfer are long or short wave, telephone,GPS, double star etc.
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文摘:目前，国内外时间传递方式主要有长波授时、短波授时、电话授时、双星比对、GPS时间信息。 |
