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maser 脉泽(184) 脉塞(114) 微波激射(10) 目前没有对本词条修改信息 用户纠错 您要纠错的词条： maser 您要纠错的译词项： 脉泽脉塞微波激射==新增译词== 您的称呼： 您的Email： 请选择您认为该词条有误的原因： 译义不准 拼写错误 译词重复 其他（请在下面输入您的理由） 请输入您认为正确的译词： 请输入您修改该词条的依据(参考资料或背景知识)：

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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。   maser        These data are interpreted qualitatively in the context of the emission mechanism caused by cyclotron maser instability. 例句来源              In 1998, the intensity of the 1.35-cm H2O maser radio line in the source Orion KL increased several hundreds of times. 例句来源              Determining the period of the long-period activity of the water-vapor maser in W75N 例句来源              We present the results of our study of the H2O maser emission from the source W75N, which is associated with a star-forming region, between November 1994 and March 1999. 例句来源              The maser emission in 1994-1999 can be represented as a superposition of flares of separate components with a duration from two to six months, which occurred mainly in the radial-velocity range 8-17.5 km s-1. 例句来源       更多

It is described that the experiment of hydrogen maser wall shift was made with changing 5 different storage bulbs coated with homemade teflon. The results are @ K(40℃)=-293±17mHz·cm and α(40℃)=- (17±2)×10~(-3)/℃ The unperturbed hyperfine transition frequency of the ground state of hydrogen atom, fo-o, was abtained by comparing a hydrogen maser with Loran—C navigation system signals, this value is @ f_(0_0)=1420405751.767±0.002Hz             本文介绍了用更换五个储存泡的方法进行的氢脉泽壁移实验,这些泡均涂以国产聚四氟乙烯。其实验结果为:K(40℃)=-293±17mHz·cm,α(40℃)=(-17±2)×10~(-3)/℃;并通过罗兰—C长期比对,求得未干扰氢原子基态超精细跃迁频率为f_(0_0)=1420405751.767±0.002Hz。 文摘来源          In the analysis of LBI observation of maser radiations at OH 1612 MHz made by Masheder et al. in the direction of NML Cyg, a new idea has been introduced that the red-shift components and the blue-shift components separately come from different shells of the circumstellar envelope. A spherical symmetry model of the air-flow's velocity field in the circumstellar envelope of NML Cyg has been obtained. Based on these, the mass loss rate, coherent length and pumping mechanism have been discussed and the r...             本文在对NML Cyg OH 1612MHz脉塞辐射的Masheder等长基线干涉仪观测结果的分析中,引进了红移分量和蓝移分量在不同拱星包层壳层中发生的新观念,得到了NML Cyg拱星包层的球形外流场模型.并讨论了质量流失、相干长度和抽运机制等问题,结论与观测符合.这在红超巨星脉塞源长基线干涉仪观测结果的分析中,还是首次获得成功.由本文的结论可看到,SiO非脉塞辐射(v=0、J=2-1)是红外星视向速度和包层流场的好的指示器. 文摘来源          A study of the relation between velocity separation of double peaks △V of maser source and associated variable's period Ⅱ is presented in this paper. A linear correlation between △V_(OH) (or △V_(SIO)) and П has been obtained, the correlation coefficient r is greater than 0.9. It indicates that the model of expanding shell of a maser star is correct. We adopt the mechanism of mass loss due to radiation-pressure-driven stellar wind, discussed the calculation method of mass loss rate for these LPV(...             本文对与长周期变星成协的OH和SiO脉泽源的两个参量周期Π和双峰间隔△V进行了相关统计,结果表明它们之间的相关系数γ>0.9,这说明脉泽源的膨胀壳层模型是正确的。采用辐射压驱动恒星风的质量损失机理,用本文统计的结果计算了长周期变星的质量损失率,得到了与观测一致的结果,利用本文所得到的物质流速的分布推算了不同Π的SiO脉泽壳层的位置,与当前人们推测位置是一致的,这一结果有待今后用高分辨率的毫米波观测检验。 文摘来源   << 更多相关文摘

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