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。

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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。

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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。

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Although tornado forecasting has remarkably improved over the last two decades with advanced forecasting techniques, weather satellites, numerical forecast models and Doppler weather radar, there is much about tornado forecasting that still remains a mystery.

CNN: STORY HIGHLIGHTS

The Forecast Model builds upon the output of the Stock Valuation Model and combines this data with econometric and simulation techniques to output target prices for one, three, and six-month and one, two, and three-year time horizons.

FORBES: It's Time To Sell Strength To Risky Levels