流沙固化 的英文怎麼說
中文拼音 [liúshāgùhuà]
流沙固化
英文
petrification of sand-
The authors investigated thoroughly the fixed - sand method of biological net of artemisia and analyzed fixed - sand principle of it and aimed at providing theoretical basis and technological support for moving - sand harnessing and ecological restoration in desert area of liaoning northwest
深入研究了差巴嘎蒿生物網方格固沙的方法，分析了生物網方格固沙的原理，為遼西北沙漠化地區流動沙丘的治理與生態修復提供了新的理論依據與技術支持。The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。This study, conducted in huangyangtan, xuanhua county, hebei province, was aimed at the roles of ecomat and shrub - planting in windbreak and sand - fixation in mobile sand dunes
以北京西北部河北宣化黃羊灘為例，對流動沙丘上鋪設生態墊並栽植灌木的防風固沙效果進行了初步研究。Abstract : in light of thicker grain and smaller viscosity of debris flow, a segmented simulation of the debris flow with flume is presented. for the first time. more difficult resistance similarity is brought about by geometric rate without excessive coarsing and discontinuous similarity of sand grain composition in model is eliminated with different grain scale. on this basis the density similarity and sand conveying similarity are achived. the method presented is verified through a model test case
文摘:針對水石流顆粒粗，粘性小的特點，提出了利用水槽進行分段模擬水石流的設想，首次通過幾何變率解決難度較大的阻力相似問題，改變了以往過度加糙的方式;通過變粒徑比尺的方法消除了模型沙級配不連續相似的問題，較好地實現了固體物質級配相似，達到了泥石流的密度相似和輸沙相似.通過水槽概化模型試驗實例，對本方法進行了驗證Chinese estuaries are shallow with abundant water and high concentration of suspended sediments, and of particularly interest in studying particulate - solution transformation
中國河流普遍具有水淺、多沙和涇流量大的顯著特徵，因此，研究中國河口區元素固-液相態變化過程具有區域特殊性意義。Gas - solid two - phase flow is existed widely in multiphase flow system, for example, desert sand in nature, fuel transportation in field of chemical industry, metallurgy, energy sources and foodstuff, and so on, as well as pneumatic conveying and dust treatment of materiel in bulk ( i. e. sands, corn and plastic granula etc. ). in addition, sulfureted bed, whirlwind dust - exhaustion, sedimentation room and filtration process are involved with gas - solid two - phase flow
氣固兩相流在多相流體系中普遍存在，例如，自然界的大漠揚沙，化工、冶金、能源和糧食等領域的燃料配送，散裝物料（如沙子、穀物、塑料粒）的氣力輸送和粉塵處理等，硫化床、旋風除塵、沉降室及過濾過程中也會涉及到氣固兩相流。Meanwhile, because there are a lot of sediments in sewage in the forebay, the bad flow pattern will make sediments depositing freely and the sediment deposition will cause worse flow pattern
同時，由於排污泵站進水水流中含有大量的懸浮固體顆粒，不良的前池流態會使泥沙更容易在前池淤積，而泥沙淤積又進一步加劇了前池流態的惡化。分享友人