Abstract : this paper analyzes causal factors of flood in the middle reaches of changjiang river. due to neglection of environmental management, soil erosion in the upper and middle reaches of the changjiag river, lake sedimentation, large - scale reclamation of marshes, the flood regulation capacity of the lake was descended, and flood stage was risen and prolonged. consequently more and more river levees and lake dikes were reinforced almost every year to prevent the disasters, which made flood level go up and flood period last for more days. the frequency of flood and waterlogging disasters rose and their damage was enlarged. several proposals for flood prevention including agricultural modernization are put forward
文摘: 1998年長江大
洪水后
開始實施的「平垸行
洪,退田還湖」的土地利用調整方案,從長遠來說應尋求農業安全且收入逐漸提高條件下的土地利用,長江中游地區應積極推進農業現代化,提高農業勞動生產率,轉移,減少分蓄
洪區的人口,移民建鎮,對區內的土地要促進其規模經營,由優秀的有文化的農民經營,平時只有少量的直接從事農業生產的經營管理人員,農忙時則大量地使用季節性合同工或實現機械化,大
洪水時退田還湖,減輕長江幹流大
洪水的壓力,減少分
洪與特大
洪災時的損失,這樣還可促進避
洪、冬季農業等的發展,也有利於長江中上游地區陡坡耕地的退耕還林,還可在糧食充足時進行休耕,在旱災、糧食緊張時擴大糧食生產?
It is necessary and pressing to excavate and broaden the floodway to increase the capacity of flood discharge and enhance the standard of flood control
因此,
開辟淮河入海水道,擴大
洪水出路,增加泄
洪能力,提高下游地區的防
洪標準是十分必要和緊迫的。
Rabelais, like a torrent of burning, shouting, laughing lava, burst through all the dignities and decencies of the pedants.
拉伯雷象一股熔巖的
洪流,燃燒著,狂喊著,大笑著,沖
開了腐儒們的一切高貴氣派和繁文縟節。
6 diversity fragmentation and evenness of ecological landscape in fukang increase with more utilization and development. the change of landscape pattern about land utilization is mainly area variation of plantation and wasteland in pluvial fan and alluvial plain, the key influence factors are the dynamic of soil moisture and salinity under the development of water and land resource
6 、在阜康各景觀帶中,隨人為
開發利用程度的增強,景觀多樣性、破碎度和均勻性增加;荒漠綠洲土地利用景觀生態格局的變化,集中體現在位於
洪積扇與沖積平原的耕地和荒地面積變動上,關鍵影響因子是水土資源利用下的土壤水鹽動態變化。
But he had not finished the poem, when the butler boomed out sonorously : dinner is ready ! the door opened, from the dining - room thundered the strains of the polonaise : raise the shout of victory, valiant russian, festive sing, and count ilya andreitch, looking angrily at the author, who still went on reading his verses, bowed to bagration as a signal to go in
但是他還沒有念完這首詩,那個嗓音
洪亮的管家便宣告: 「菜肴已經做好了! 」房門敞
開了,餐廳里響起了波洛涅茲舞曲: 「勝利的霹靂轟鳴,勇敢的俄羅斯人盡情地歡騰」 ,伊利亞安德烈伊奇伯爵氣忿地望望那個繼續朗誦詩篇的作者,並向巴格拉季翁鞠躬行禮。
On blasting excavation of power house dam section of jinghong power station
景
洪水電站廠房壩段
開挖爆破
Their departure just before the floods was providential
他們恰在發
洪水之前離
開,走得真是時候
The sluices had already been opened, and with every day the floods were spreading.
水閘已經打
開,
洪水逐日奔流。
The sonorous tones of the auctioneer, calling out to clear the way, now announced that the sale was about to commence.
拍賣人用
洪亮的聲音招呼大家閃
開一點然後宣布拍賣即將
開始。
The stentorian tones of the auctioneer, calling out to clear the way, now announced that the sale was about to commence.
拍賣人用
洪亮的聲音招呼大家閃
開一點,然後宣布拍賣即將
開始。
Dig jade is it leave riverbed in river valley terrace, do beach to refer to, ancient river and alluviation, diluvian gravel that fan have dig seeking and d jade gravel of the layer in front of the mountains the jade of these places is brought by the flowing water too
挖玉是指離
開河床在河谷階地干灘古河道和山前沖積
洪積扇上的礫石層中挖尋和闐玉礫。這些地方的玉也是由流水帶來的。
On the basis of the previous studies, a systematical study on the test and analysis of the atomization model is made herein based on both the prototype test and model test for jiangya dam, and then the data processing system for the atomized water particle size is developed as well ; which is a new trial carried out for the model law for the intensity of rainfall from atomization of flood - discharging flow
摘要在以往的研究成果基礎上,結合江埡大壩原、模型測試成果,對霧化模型的測試分析技術進行了系統研究,
開發了霧化粒度數據處理系統,對泄
洪霧化雨強的模型律進行了新的探索。
Classic kung - fu comedy adventure about shanghai sailors battling vicious pirates. blending buster keaton - esque comedy, dazzling martial artistry, and eye - popping stuntwork, this richly rewards genre fans willing to endure a slow start
香港
開埠初期海盜橫行,水師小隊目馬如成飾,不滿官府對付海盜不力,憤而辭官,與師兄卓一飛
洪金寶飾合力對付盜羅三炮,卻接連敗退。
Abstract : this paper an outline of the national fund project, bridges " s safety prediction and behavior simulation under the multi - phase coupling actions by flood water. the authors approach coupling action models among solid, liquid and gas states, while discussing bridge rupture features under these coupling actins. as one important problem of the project, physical and simulation model are discussed too in the paper. all the discussion in the paper can be a guide to deep research of the project
文摘:本文系國家自然科學基金資助項目《橋梁抗禦
洪災異相耦合破壞作用的安全性預測與模擬》研究綱要的縮影,筆者對災害伴生過程中各物相(固態、液態、氣態)之間耦合作用形態及對橋梁破壞性認識,以及對耦合作用物理模型、模擬模型的初步探討,以期為該項目研究的展
開和向縱深推進提供借鑒
He called tihon and began undressing
他喊了一聲吉洪,開始脫衣裳。