天文

In none of these respects does optical astronomy have any advantage over radio astronomy .

在所有这些指标上，射电天文并不比光学天文逊色。

Radio spectrometer is important method and main instrument of radio astronomy research, through which we can research radio astronomy phenomenon in wide frequency spectrum and continuous time with high frequency resolution and high temporal resolution.

射电频谱仪是通过高的频率分辨率和高的时间分辨率，在广泛的频谱范围内和连续的时间演化上进行射电天文观测的仪器，它是射电天文研究的重要方法和主要工具。

The real time tracking of the radio telescope which guarantees the successful observing is an important part of the radio telescope system.

射电天文望远镜的实时跟踪是保证射电天文观测成功的一个重要的组成部分，直接关系到接收数据的正确性和有效性。

So the absolute calibration of our CGG-B type sensitometer has been achieved.

遵循国际天文学会照相工作组的建议，我们配置了中心波长为λ4600，6000和8000的窄带干涉滤光片以及辐射计，并改造感光仪，设计正确方案，从而实现了对天文底片感光学实验的绝对校准。

Cyclostratigraphy was born in 1980s as a subdiscipline of stratigraphy. Based on the Milankovitch theory, outcrop sections and cores are analyzed with methods such as geochemistry, spectrum analysis, and time-sequence analysis to study the complex responses of orbital forcing to sedimentary records.

旋回地层学作为一门独立的地层分支学科诞生于20世纪80年代，它以米兰科维奇天文轨道旋回为理论基础，以露头剖面、岩心等为研究对象，应用地球化学、光谱分析和时间序列分析等方法，研究天文轨道参数周期性变化在地层记录中的沉积响应。

The motives for his introduction of an astronomical system different from that of Schall could also be two-faceted. Firstly, under the influence of the dispute between Lansberge's Copernican school and the Tyconic school in Europe, he apparently became a sympathizer of Lansberge's system. Secondly, being quite aware of the serious errors of Tychinic astronomy in some calculatoins, like a number of other Jesuit Fathers doing, Smogulecki was pobably trying to replace it with Lansberge's system, which he believed to be more exact.

至于他为什么要介绍一种不同于弟谷体系的天文学系统，原因也有两个方面：首先，他明显受到当是欧洲哥白尼和弟谷两大天文学派之间的论战的影响，并且对哥白尼学派的主张持同情态度；其次，于许多入华耶稣会士一样，穆尼阁很明白，弟谷体系在天文计算中仍然存在很大误差，所以想用他认为更加精密的兰斯伯格的天文学系统来对它加以取代。

SkyNews, the Canadian Magazine of Astronomy and Stargazing, is published six times a year.

星空新闻》杂志是加拿大著名的面向天文爱好者和望远镜发烧友的天文杂志，双月刊，每年出版6本。

In this paper,Qi Yanhuai,an astronomer in the Qing dynasty,and his vertical direct east and west sun dials,transit instrument and celestial sphere instrument were studied in detail.

介绍了清代天文学家齐彦槐的生平及其制作的面东西日晷、中星仪和天球仪等天文仪器，进一步探讨了这些天文仪器的制作原理和使用方法。

Based on the ideal of making most use of the celestial navigation system that is high accuracy,after analyzing the principle and error models of the CNS and inertial navigation system,an error correction algorithm of the CNS/INS integrated navigation is presented.

通过分析导弹天文导航和惯性导航的导航原理和误差模型，在基于充分利用高精度天文导航参数的思想上，提出了组合导航的误差修正方法。

A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.

天文观测舱，领航舱飞机顶部的一个透明圆顶形结构，航行时可通过它作天文观测

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。