本文介绍了1991年上海天文台VLBI观测概况。
VLBI observations at Shanghai Observatory in 1991 are described.
一种守时用极小型氢脉泽频率标准正在上海天文台研制。
A type of small Hydrogen maser used for time-keeping is being developed in Shanghai Observatory.
本方法首先用于检测上海天文台SLR跟踪望远镜动态系统差的试算。
The method is first used to test detection of dynamic systematic errors for SLR tracking telescope at Shanghai Observatory.
中科院上海天文台的专家近日介绍说：现代民间习惯上把过春节又叫做过年。
Of the Shanghai observatory, an expert has said: modern folk habits on the Spring Festival is also called for the New Year.
目前，MK5A终端系统已经成功地应用于上海天文台所有的VLBI实验。
Now, the MK5A system has been successfully applied in all VLBI experiments of Shanghai Astronomical Observatory.
我们在上海天文台对这种影响进行了观测，并对观测数据进行了计算和分析。
On September 23. 1987, we observed such effect at Shanghai Observatory, and analysed the observing data.
在上海天文台BPV标频和时间信号的发播工作中，使用了高精度石英晶体振荡器。
High precision quartz oscillators were used for the transmission of BPV standard frequency and time signals at Shanghai Observatory.
本文介绍上海天文台HP 1000计算机操作系统的结构设计，系统生成和安装。
This paper describes the structure planning, system generation and installation of HP 1000 computer operating system at Shanghai Observatory.
本文将描述它的机械和电子学设计特点，并与上海天文台早期制造的氢钟进行了详细的比较。
This paper describes the mechanical and electronics design philosophy of the new maser, and comparisons with previous masers made at Shanghai Observatory are detailed.
根据上海天文台协调原子时尺度建立的要求，探讨了ARIMA模型在原子时预报中的应用。
Based on the requirement for establishing coordinated atomic time scale at Shangha1 Observatory, the application of ARIMA model to the forecasting of atomic time was discussed.
通过日本静止气象卫星(GMS)的远距离钟同步实验正在上海天文台(SO)和日本电波研究所(rrl)之间进行。
The clock synchronization experiment via Japanese Geostationary Meteorological Satellite (GMS) is being conducted between Shanghai observatory (SO) and Radio Research Laboratories (RRL).
年8 月在上海天文台利用安装在1 ．56米望远镜上的CCD探测器对天王星五颗主要卫星进行了定位试观测。
The major satellites of Uranus were observed with the CCD detector equipped on the 1.56m telescope at the Shanghai Astronomical Observation during the 1995 opposition.
本文描述上海天文台为改善氢脉泽标准的频率稳定度和工作可靠性所采用的主要技术，同时给出了采用这些技术后氢脉泽的新的性能数据。
This paper describes approaches taken by the Shanghai Observatory to increase the frequency stability and operational reliability of its hydrogen maser. Performances of the new maser are given.
本文描述上海天文台为改善氢脉泽标准的频率稳定度和工作可靠性所采用的主要技术，同时给出了采用这些技术后氢脉泽的新的性能数据。
This paper describes approaches taken by the Shanghai Observatory to increase the frequency stability and operational reliability of its hydrogen maser. Performances of the new maser are given.
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