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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Experiments [1, 2] have revealed a transition accompanied by an appreciable enhancement of pulsations whose period is twice that of the driving vibrating tape.
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Results are given of experimental investigations of heat transfer under conditions of forced convection of highly subcooled water in a smooth pipe and with an internal twisted tape under asymmetric heating.
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The technique for measuring distortions is described, and the results of measurements are presented for several films cut from different sections of a standard piece of double-sided tape with a length of ~7 m and a useable width of ~20 cm.
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The standard plastic base of the tape under investigation is 190 μm thick; ~50-μm-thick layers of diluted PX3 emulsion-gel are applied to its opposite sides.
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The trigger system of the detector and the conditions for recording "charged" and "neutral" events on a magnetic tape are described.
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| | An electroplating automatic production line operated by the program control of the photoelectrical punched tape input with the integrated cir- cuit is systemmatically described in a popular way. The control system consists of the input device, the photoelectrical tape and the programming, photoelectrical transforming circuit and the main circuit with its control systems. This arrangement has been successfully run for more than a year. | | 本文介绍了采用光电输入方式、集成元件组成的程序控制电镀自动线。电气控制部分包括:输入装置,光电阅读机起停线路,纸带和程序编制,光电转换电路,主电路及其控制系统。这套装量投入生产一年多,运行正常。 | | 文摘来源 | | The electronic governor motor is a kind of stable speed motors used widely. In this paper the speed fluctuation of electronic governor motors used in cassette tape recorders is analysed and discussed from the point of view of electrical machine theory combined with automatic control theory and electronic technique theory.First, depenping on the dynamic and static state block diagram of the system, the stability criterion of the system and analytic formulas of the motor steady state speed are obtained.... | | 电子稳速电动机是一种应用广泛的稳速电动机。本文从电机、自动控制和电子技术诸理论结合的角度,对盒式录音机用电子稳速电动机的稳速精度进行分析讨论。首先依据系统的动、静态方块图,得出系统的稳定判据和电动机稳态转速的解析式,然后按照影响电动机转速稳定的几个主要方面,讨论电压转速波动、负载转速波动、温度转速波动、电刷接触电阻转速波动等,导出一些定量分析的结果,并提出若干保证稳速精度的措施。 | | 文摘来源 | | The screen printing grids made of low temperature Ag paste were investigated.Fromthe experimental result in the relationship between grid resistance and bakeout temperatureof Ag paste,the lowest resistance of grids can be obtained with the bakeout temperaturecontrolled at 220℃ for 1h.The grid resistance increases with the increase in the enviro-nment temperature,and has a positive temperature coefficient.The contact resistance betwe-en grids and TC film was measured.Its values are in the range from 0.02 to ... | | 对用低温导电银浆丝网印刷法制作的栅线进行了研究。根据栅线电阻与烘烤温度的实验,在220℃烘烤1h 可得到电阻率最小的栅线;栅线电阻率随温度升高而升高,具有正的温度系数。测量了栅线与 ITO 薄膜的接触电阻,其值为0.02~0.07Ω·cm~2,并随温度升高而增大。栅线经二个太阳的强光曝晒后,栅线电阻率、栅线与 ITO 的接触电阻均稍下降。栅线与 ITO 有一定的粘接强度,用透明胶带粘接——拉开10次,未见栅线的脱落和电阻的变化。计算了丝网印刷薄层的平均厚度,与实测的厚度较接近。分析和比较了由于制作栅线使 ITO 的等效横向传输电阻减小因而降低损耗,以及由栅线本身引起的遮光损耗、栅线电阻损耗、栅线与 ITO 的接触电阻损耗与栅线数的依存关系,发现栅线数为4时,上述四种损耗百分比的和最小。 | | 文摘来源 | |   | | << 更多相关文摘 |
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