The disastrous rule of rice planthopper occurrence in Jianghuai rice region and its forecast techniques were studied.
研究了江淮稻区白背飞虱和褐飞虱的成灾规律,以及稻飞虱灾变的短、期预测技术。
Abstract: The disastrous rule of rice planthopper occurrence in Jianghuai rice region and its forecast techniques were studied.
文摘:研究了江淮稻区白背飞虱和褐飞虱的成灾规律,以及稻飞虱灾变的短、期预测技术。
To improve the trace precision of the servo system in some tracking set, the text adopts the computer aided control techniques based on digital forecast and filter.
本文以提高某跟踪装置的伺服系统的跟踪精度为主要目标,采取了基于数字预测和滤波的计算机辅助控制技术。
The CBM reservoir numerical simulation is not only one of key techniques of CBM reservoir exploration and development, but also one of effective measures for CBM production forecast.
煤层气储层数值模拟是煤层气资源勘探和开发的关键技术之一,也是煤层气井产量预测的有效手段。
Using the input-occupancy-output techniques and system science methods, this paper makes a forecast about Chinas grain output, grain import and self-support rate in the year 2030.
利用投入占用产出技术及系统科学方法,对2030年中国的粮食产量、粮食进口量及自给率进行了预测。
Since most techniques are now largely automated, the analyses of synoptic fields are based on the previous 12-hour forecast maps as a first guess.
由于大多数天气分析技术都是采用自动化,12 小时前的预报图作为分析天气场的第一次推测图(初始场)。
Greater precision that the "showers and bright periods" or "scattered showers" of the forecast language is impossible with present techniques.
应用当前的技术对气象用语中所谓的“阵性降水和转晴”及“零星降水”的预报更为精确是不可能的。
In this paper, with examples of Yangqu diversion tunnel project, Focusing on TGP206 geological forecast system theory, detection method, line layout and results analysis techniques.
本文结合羊曲水电站导流洞工程实例,介绍TGP206型地质超前预报系统的探测原理、探测方法、测线布置、结果分析技术。
In this paper, with examples of Yangqu diversion tunnel project, Focusing on TGP206 geological forecast system theory, detection method, line layout and results analysis techniques.
本文结合羊曲水电站导流洞工程实例,介绍TGP206型地质超前预报系统的探测原理、探测方法、测线布置、结果分析技术。
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