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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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| | Two kinds of the vapor-deposited Nb3Sn tape with different Tc are studied by SBM and X-ray analysis. Their current carrying capacities are also measured. We found that their structures and Ic are apparently distinctive. Relationships between Tc, Ic and structure meeds further research. | | 对具有不同T_C的两种气相沉积Nb_3Sn带进行了扫描电镜观察和X-射线物相分析,并测定了它们的载流能力.发现它们的组织结构和I_c有很大差异,其内在关系值得进一步研究. | | 文摘来源 | | A two-segment electronic commutator is the simplest one. It is pos- sible to switch stator current two times per period. Two times per period electronic commutation dc motor consists of a single phase synchronous motor with a rotor position sensor and two power electronic switches. It is necessary that motor would have unidirectional torque, i. e, no zero torque in torque-position characteristic. Here is proposed a single phase with neutral wire synchronous motor, which is special and reversible. It can be ... | | 二片的电子换向器是最简单的换向器,它使定子电流每周切换二次。每周二次电子换向直流电动机由带转子方位传感器的单相同步电动机和两个功率电子开关组成。这种电动机必须具有单向转距。也就是说,在转矩一角度曲线中没有0转矩点。 | | 文摘来源 | | This paper uses the tape helix model and considers the effects of dielectric, axially conducting shield and wire size on dispersion characteristics for the helix structure with longitudinally conducting vane. The actual dielectric rods are replaced by an equivalent dielectric circle. The formula of dispersion characteristics for this type of helix can be deduced from electromagnetic theory. A comparison with experimental data of references [3, 7] shows that they are very close.When the ratio between s... | | 本文采用螺旋带模型,综合考虑了介质、纵向导电翼片屏蔽筒及导丝尺寸对结构色散的影响。导出了设计公式,与实测结果相当符合。 当R/S>1.1,S/α<1.5时,相速理论值的误差在5%以下。提供了通用设计计算曲线,可供工程设计之用。 | | 文摘来源 | |   | | << 更多相关文摘 |
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