Miniature passive hydrogen maser is developed at Shanghai observatory.

1、

The improvement of the performance of the hydrogen maser clock at Shanghai Observatory in recent years

近年来上海天文台氢钟性能的改进和提高

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2、

Development of miniature passive hydrogen maser at Shanghai Observatory

被动型小氢钟的研究进展

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3、

Practical usage of gas hypersensitization method at Shanghai Observatory

气体敏化方法在上海天文台的实际使用

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4、

Ground tracking station of prare system setup at Shanghai Observatory

精密测距测速系统地面跟踪站在上海天文台建立

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5、

This paper will describe the design improvement and performance of Shanghai Observatory's atomic hydrogen clock.

这篇文章描述了上海天文台研制的氢原子钟的技术改造与性能。

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6、

Satellite laser ranging observation at Shanghai Observatory in 1998

1998年上海天文台人卫激光测距观测报告

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7、

The accuracy of the determination of the baseline using experimental VLBI system in Shanghai Observatory

VLBI实验系统基线测量的精度

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8、

The library automation and networking construction at Shanghai Observatory

上海天文台图书馆自动化和网络化建设

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9、

The design of the range gate in satellite laser ranging systems at Shanghai Observatory

激光人卫测距中距离门的设置

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10、

The Uses Development and Improvement of the Hydrogen Maser in Shanghai Observatory

上海天文台氢原子钟的使用、研究和改进

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11、

Microwave spectrum of optical system improvement of cesium beam frequency standard at Shanghai Observatory

上海天文台铯钟改进束光学系统后的微波谱

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12、

A preliminary analysis of the accuracy of the satellite laser ranging system at Shanghai Observatory

上海天文台人造卫星激光测距系统的精度初步分析

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13、

Time and frequency system of SLR at Shanghai Observatory

上海天文台激光测距站的时频系统

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14、

The application of the software engineering methodology in establishing environment at Shanghai Observatory

软件工程方法在台级计算机环境建设中的应用

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15、

Thermistor thermal control system on the hydrogen clock at Shanghai Observatory

上海天文台氢原子钟热敏电阻控温系统

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16、

The objective of Beijing National Earth Observatory is to make a great effort to transform it into observing and researching and forecasting three-in-one combination seismic station. In order to realize this objective, the way and step of the management is provided.

提出了把北京国家地球观象台建成监测、预测、科研三结合台站的管理目标，给出了实现这个目标应采取的管理方法和必要措施。

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17、

National Ecological Observatory Network ( NEON), proposed by National Science Foundation ( NSF) in 2000, would be a nationwide network that focuses on the pressing environmental challenges at regional and continental scales in the United States.

美国国家生态观测站网络（NEON）是一个以研究区域至大陆尺度重要环境问题的国家网络，它是由美国国家科学基金会（NSF）于2000年提出建立的。

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18、

It also advises closing the National Solar Observatory's facilities at Kitt Peak on the Tohono O'Odham Reservation in Arizona and Sacramento Peak in Sunspot, New Mexico.

报告还建议关闭在亚利桑那基特峰和新墨西哥萨科拉曼多峰上的太阳观测设备。

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19、

Two large monitoring projects of this kind are NEON the National Ecological Observatory Network andOOI, the Ocean Observatories Initiative.

在这一类监控项目中有两个比较有代表性的大型项目，一个是美国国家生态观测站网络（NEON），一个是海洋观测计划（OOI）。

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20、

How to manage Beijing National Earth Observatory

北京国家地球观象台的管理

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