超小孔徑 的英文怎麼說
中文拼音 [chāoxiǎokǒngjìng]
超小孔徑
英文
vsav-
When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer
2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。Complete the design of application program and study the data processing algorithm on the ground of accurate diameter measure applying to small
4 .進行了主機應用程序的設計，並以超精密小孔孔徑測量為背景進行了主機上數據后處理演算法的研究。Elastic - plastic analysis for soil around anchor jacked pile in this paper, the course of penetration is regarded as expansion of cylindrical cavity in infinite soil mass. combining with the knowledge of elastic mechanics and plastic mechanics, we can make analysis for soil around pile. finally, we can educe the cylindrical cavity pressure, radius of plastic zone, radical displacement in elastic zone, excess pore water pressure in soil around pile and spherical cavity pressure at the end of pile
錨桿靜壓樁樁周土體的彈塑性分析該部分是文章的主要工作所在，本文把壓樁過程樁周土體的本構關系看作是水平面的平面應變小孔擴張問題，利用小孔擴張原理，結合彈性力學以及塑性力學的知識，對壓樁後土體的性狀作出分析，得出樁對土的擠擴作用力、樁周土體塑性半徑、彈性區的位移，壓樁完成瞬時樁周土體彈性區和塑性區的超孔隙水壓力以及樁端球形孔擴張的擴張力。Synthetic aperture ultrasound technique has been developed since the 1970 ' s and is now at the stage of lab research and small - scale experiments
合成孔徑超聲成像自70年代開始發展起來，現在還處于實驗室研究及小規模試驗階段。Nanofiltration ( nf ) ? nanofiltration is a membrane process capable of separating preferentially different fluids or ions. its membrane ' s pores are typically much larger than the membrane pores used in ro while smaller than in uf. thus, particles with larger charges are more likely to be rejected and smaller molecular weight organics are permeable
納濾?納濾是介於超濾和反滲透之間的膜分離技術，具有納米級的孔徑確保它能截留透過超濾膜的那部分相對小的分子量的有機物，而透析被反滲透所截留的無機鹽。分享友人