low flow period 中文意思是什麼
low flow period
解釋
枯水期-
The first stage was characterized by ductile detachment deformations, and during 228ma - 170ma took place high temperature flow deformation and in the period of ivoma - 135ma middle - low temperature deformations occurred, as shown by deformations feature and history of mylonite granites
亞干變質核雜巖的運動學各類構造要素產狀協調一致，表明為同期構造產物。其各種宏觀、微觀運動學標志幾乎都表現為上盤對下盤的向sse的剪切運動。 -
The factors include antecedent precipitation of low flow period and status of karst basins ( such as lithology, landform, drainage area, drainage density, length and ratio of demotion of main river and so on. ). based on the former studies, integrated the conventional statistic methods, the technique of anns is applied in this paper for researching the law of the low flow of karst basins in guizhou altiplano
影響喀斯特流域枯水徑流的因素異常復雜，其影響因素主要有枯季前期降水量和巖性、地貌、流域面積、河網密度、主河道長度及其比降等流域下墊面狀況。本文在前人研究的基礎上，採用人工神經網路技術，結合傳統的統計方法，研究貴州高原上喀斯特流域的枯水徑流規律。 -
Thirdly, the mathematics model of forecasting low flow was established in fengcong and fenglin regions according to these factors influencing the amount of low flow in karst drainage ( the area of drainage, lithology, the type of landforms and its special assembly and forest ) the conception of low water resources carrying capacity was first put forward according to the changing law of low water resources in space and the situation of exploitation and utilization in karst drainage ( ie, under the condition of the virtuous ecological environment and the available technology, the explorable amount of water resources in certain areas is capacity and limitation which is able to coordinate the development of population, enviroment and economy during the period of low flow seasons ) and preliminarily analyzed its connotation, characteristic and established the index system of low flow in karst drainage
三是根據影響喀斯特流域枯水徑流的下墊面因素（空間尺度、巖性、地貌類型、植被） ，分別對峰叢和峰林等喀斯特地區建立枯水徑流預測模型。根據喀斯特流域枯水資源的空間變化規律以及實際開發利用狀況，首次提出了枯水資源承載力的概念，即在枯水季節期間，保持良性的生態環境和現有的技術條件下，某一區域內可開採的水資源量對支持該地區人口、經濟與環境協調發展的能力和限度。並初步分析了枯水資源承載力的內涵、特性，從水資源的供需方面確立了喀斯特流域枯水資源承載力的指標體系。 -
Water shutoff agent dsz - a is composed of inorganic particle. its specialities are low cost, easily flow, high strength and long valid period. the agent suits non - selective water shutoff in sand formation. dsz - a not only can plug high water - bearing formation, but also can plug case leakage. dsz - a has been applied on site and gotten good effect. it is a agent which has wide prospect
井下護泵除砂裝置主要用於產液氣量高，出砂能力大，利用常規裝置、常規方法很難治理的井.它的設計是建立在丟手封隔器卡封的基礎上，將液體攜砂能力由地層進入泵管轉變為先過濾（雙層激光割縫篩管部分） ，再在除砂器內靜態沉澱、由單流閥排入井底等一系列除砂護泵優點.本文著重介紹了井下護泵除砂裝置的工作原理與應用情況 -
With the research of the evolvement features of barotropic and baroclinic atmosphere flow fields, the mechanism has been studied of the formation, development and die out of the heavy rainfall which occurred in wu - han during the period of 21 - 22, july 1998. the results are shown as follows : the evolvement of the rainstorm has a close relation to the barotropic component of the real atmospheric flow filed. and the barotropic component is, to a certain degree, also responsible for the coupling characteristics of high - and low - level jets
本文從研究大氣正、斜壓流場的演變特徵入手研究了1998年7月武漢的一次強暴雨發生、發展、消亡全過程的機理，研究結果表明： （ 1 ）未經過尺度分離的實際大氣流場正壓分量的演變與此次暴雨的醞踉、發展和消亡相對應，並且正壓分量在一定程度上反映高、低空急流耦合特徵。 -
With the rapid development of satellite remote sensing technology, it has been widely applied in national economics and martial area, in particular, in the field of natural disaster reduction, for examples, in forecasting and controlling of flood, preventing of forest - fire, monitoring of landslide and debris flow and so on. regretfully, as we understand the satellite remote sensing technology are rarely applied both at home and abroad for earthquake disaster reduction. it is because that on the one side, earthquake is a very complicated natural phenomenon with its indistinct genesis mechanism and occurrence of very low probability and on the other side, the resolution of satellite remote sensing image is too low and satellite repeat period is too long that constrain this technique to be used in earthquake disaster reduction. this paper intends to address the application, practicability and other relative scientific - technical and economic issues, of satellite remote sensing technology in reducing earthquake disaster, it is believed that the earlier use of satellite remote sensing technology in china will provide a more effective and economic vehicle to minimize the future earthquake losses and also successful experiences to the world communities
衛星遙感技術在減輕自然災害中發揮了十分重要的作用，但也不得不指出，衛星遙感技術在防震減災工作中，無論在國內或國外均尚未得到有效的應用.這一方面固然是由於地震事件十分復雜，地震孕育和發生的規律尚未搞清，難以發揮衛星遙感技術的作用，另一方面也由於可以使用的衛星遙感技術的解析度還不夠高，重復觀察的周期長，限制了這一技術在防震減災工作中的應用.有鑒于近年來衛星遙感技術有了新的進展，使其有可能在防震減災中發揮特殊的作用，本文旨在對衛星遙感技術在防震減災工作的應用，對它的可行性、有效性、經濟性和與此相關的科學技術問題進行探討，使這項技術能在防震減災領域早日得到應用，以促進我國防震減災工作的發展
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