岷江中上游及青衣江流域近50年来降水变化特征分析—《南水北调与水利科技》—2008年第3期—龙源期刊网 关键词：岷江中上游及青衣江流域； 降水；趋势； 降水周期 [gap=1334]Key words:Minjiang upriver and Qingyijiang river basin;precipitation;trend;precipitation cycle
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Formation damage caused by secondary precipitation of ferric ion is a potential problem in acidizing and excessive iron level would bring a series of chain reaction and vicious cycle.
在酸化作业中，铁离子的二次沉淀所造成的地层伤害是一个潜在问题，铁含量过高会出现一系列连锁反应和恶性循环。
The annual precipitation and summer precipitation are very similar in terms of time scales and cycle characteristics.
年降水量与夏季降水量在时间尺度和周期特征方面非常相似。
Global warming brings an important impact to the water cycle factors such as air temperature, precipitation and runoff and so on in the area in the recent decades years.
近几十年来，全球平均气温的持续上升对该区域气温、降水、径流等水循环要素产生重要的影响。
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