PLC based Control System for Cryogenic Environmental Test

1、

Do well indoor environmental test and to avoid harmful gas pollution

搞好室内环境检测严防有害气体污染

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2、

The Relationship Between Military Natural Environmental Test and Civilian Natural Environmental Test

军用自然环境试验与民用自然环境试验的关系

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3、

Analysis of Reliability Test and Environmental Test

产品研制生产阶段的可靠性试验与环境试验

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4、

Brief Description of Status in Technology of Environmental Test Equipment at Home

国内环境试验设备技术状况概述

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5、

Prediction of Response of Vibration Environmental Test Based on Vibration Transfer Feature

基于振动传递特性的振动环境试验响应预测

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6、

The Development of Natural Environmental Test and Evaluation Technologies

自然环境试验及评价技术的进展

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7、

Current State and Developing Trend of Combined Dynamic Environmental Test

动力学综合环境试验技术现状和发展

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8、

Application of dynamic environmental test technology to fault diagnosis of spacecraft structure

动力学环境试验技术在航天器结构故障诊断中的应用

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9、

Intelligence control system of higher temperature environmental test for SOI device

SOI器件高温环境实验智能控制系统

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10、

One of portable environmental test system is designed in this thesis.

本文讨论了一个便携式温湿度环境检测系统。

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11、

Study of Environmental Test Information Remote Transmission System

环境试验信息远程传输系统研究

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12、

The Relation between Environmental Test and Reliability Test and its Application

环境试验与可靠性试验的关系及其应用

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13、

The Control Circuit of the Telescope for the Observation of Halley's Comet

哈雷彗星观测望远镜的跟踪电路

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14、

A Preliminary Discussion of the Relationship between the Return of Halley Comet and Great Earth quake Occurrences

哈雷彗星接近地球与大地震关系的初步探讨

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15、

Observation and Analysis for the Outburst of the Halley's Comet

一次哈雷彗星爆发现象的观测和分析

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16、

R. Hind, a British astronomer, once usedthese continuous data to calculate the orbit of Halley's Comet, and discovered that the angle of the orbit showed a narrowing trend.In the Han Dynasty, it was 170 degrees, but it nar-rowed down t0 161 degrees in the mid-9th century.

英国天文学家J.R.海德曾经使用这些数据计算哈雷彗星的运行轨道，他发现，彗星运行轨道角度呈变小趋势：在汉代，角度为1700，到19世纪中叶，则减至1610。

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17、

Makes an attempt to discuss the possible relationship between Halley comet approaching to the Earth and earthquake occurrences. A table is given in the text showing the correspondence between the occurrences of great earthquakes with M ≈ 8 and Halley comet since the fourteenth century.

探讨了哈雷彗星接近地球与大地震发生的可能关系，特别列表说明了从14世纪以来哈雷彗星与8级大震的对应关系；

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18、

Twain was born in 1835 following the appearance of Halley's Comet, which comes about once every 75 years.

土温出生于1835年，正巧赶上75年回归一次的哈雷慧星划过长空。

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19、

The Transit Effect of Halley Comet and An Approach to the Machanism of Magnetic Field in Its Plasma Tail

Halley彗星的凌日效应及其等离子体彗尾中磁场机理的探讨

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20、

The Sombrero galaxy is located some 28 million light-years away.

草帽星系位于2800万光年以外。

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