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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。 | |
The relict genera once occupied huge areas in the northern hemisphere in the Tertiary or the late Cretaceous, while neo-endemism mostly originated in the late Tertiary.
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These results suggest that upon exposure of DNA to 1O2, neo-epitopes are generated, which may be one of the factors for the induction of circulating autoantibodies in the three diseases.
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It is shown that the development of this method in future studies will require a balanced combination of neo- and paleoecological approaches.
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A detailed characterization of the changes in the flora and vegetation that occurred during the most ancient Neo-Pleistocene interglacials and glacials is provided.
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The low TDM model ages (>amp;lt;100 Ma) suggest that the Neo-Proterozoic-Phanerozoic is one of the main stages in the continental growth.
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| | A new wavemeter with cathode-ray for decimeter and centimeter waves is proposed, utilizing special deflections of cathode ray in a rapidly alternating field. When the wavelength of the deflecting field is short enough, the deflections can be made to have maximum and zero sensitivities or phase-shifts by adjusting the anode voltage. Formulas for computing the wavelength are derived and fully discussed. All factors concerning this type of wavemeter are thoroughly investigated from the theoretical consideratio... | | 著者新拟一量数分米或数厘米电波之波长计其法用阴极射线在极短波长之电场内之特殊偏侧在相当情形下,可由调节其阳极之电压,而使其偏侧之灵敏度或相差成极大或成零。由此计算电场之波长所需各算式均已推出。且按原理及初步实验,将凡关于此种波长计各节,亦已详细研究。 | | 文摘来源 | | A new method of generating electric pulses of short duration with good amplitude and steadiness is devised by superposing two similar and opposite pulses produced with two glow discharge tubes. Confirming experiments are made and fully reported. A useful formula for passing a pulse through a transformer is also derived. | | 著者新拟一法以发生强大而稳定之短时脉流。其法系用二辉光放电管所发之同样而反向之脉流之较差;并详述其实验证明之结果。且对於脉流经过变压器,推出一适用之算术方式。 | | 文摘来源 | | An analysis of the existing data for doubly ionized calcium in the extreme Schumann region below 1010 was made, and practically all the bright lines in this region were classified. 16 new terms were tabulated. The isoelectronic sequence A I. K II. and Ca III was dismissed. An interesting new level 3s3p +s3S1, which combines with all the Ss23p5+s terms, is obtained in the analysis. | | 本文就已知之记录,分析钙之二度游离光谱,凡较强之线在Schumann氏范围之极端约λ1010以下者几全均识别;而所新得之十六项亦具表详列对AⅠ,KⅡ及CaⅢ之等电子序并有详细讲讨论更有3s5p~64s~3S_1项者,与3s~23p~44s诸项相配合,亦经分析酌定焉。 | | 文摘来源 | |   | | << 更多相关文摘 |
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