第二十五条 自然保护区区域内受损自然生态系统修复、生态廊道连通、重要栖息地恢复等应当坚持自然恢复为主；确有必要开展种群调控、树种更新等人工修复活动的，应当充分听取有关方面意见，按照有关规定制定科学合理的修复方案并依法实施。
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A modern jet has an array of sensors to help it contend with bad weather. Magnetometers track the plane’s direction; gyroscopes help calculate its pitch and roll; accelerometers detect its changes in speed; Doppler radar measures the distance to the storm and how quickly it’s moving. In the early nineties, Larry Cornman developed a program that could sift through some of that sensor data to measure the air’s turbulence in real time. Atmospheric scientists call this the “eddy dissipation rate,” or E.D.R. It’s usually scored between 0 and 1—calm to severe.
危险的征兆，在6月底第一次出现。