surface instability 中文意思是什麼
surface instability
解釋
表面不穩定性- surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
- instability : n. 動搖性，不穩定性；不堅決，反復無常，三心二意。 the instability of human affairs 人事滄桑。
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Wet and dry numerical simulation tests for explosive cyclone over western pacific were performed. by contrast the results show that : tropopause and constant temperature surface were raised by latent heat release in upper level and disturbance trough was produced because air flow ascended and became cold. owing to this process adaption, inertial instability emergenced
對氣旋強烈爆發的過程進行干濕對比數值模擬試驗，得出：潛熱釋放使對流層項和等溫面抬高，氣流在高層的上升冷卻形成擾動槽，其適應過程使高層出現慣性不穩定。 -
Too much embankment of filled soil will result the destroy of road surface or instability of high - stack soil ; soil pressure at the top of culvert is the key parameter of culvert structure design, more or less of the parameter will result in economic waste or failure of structure
堤頂沉降過大，輕者破壞路面，重者路堤失穩，涵洞頂部土壓力是涵洞結構設計的控制指標，計算過大導致經濟浪費，過小導致涵洞開裂，影響其使用壽命。 -
2 ) from the analysis of the aerodynamic parameters and turbulent flux transfer under different synoptic conditions we achieve the conclusion that on sands raising and sandstorm days turbulent momentum and sensible - heat fluxes are important exchange factors in the boundary layer, with turbulent exchange stronger in sandstorm weather than both on fine and sand raising days. prior to the occurrence of such an event, in particular, the super - adiabatic instability in the near - surface boundary will reinforce sandstorm weather condition. 3 ) atmospheric turbulent diffusion parameters z and y have apparent daily variation
沙塵天氣下以親地殼元素為主的氣溶膠元素濃度均高於背景大氣和浮塵天氣，而且沙塵天氣強度愈強，元素濃度的增加愈顯著；背景大氣、浮塵天氣條件下親地殼元素的濃度一般在10 ~ （ - 1 ） 10 ~ 0 g m ~ 3量級，揚沙、沙塵暴時一般達10 ~ 1 g m ~ 3量級，特強沙塵暴時高達10 ~ 2 g m ~ 3量級。 -
The above analysis showed that this heavy rainfall event took on obvious meso - scale characters and was the combination of the three flows, so we can deduce : ( 1 ) surface southeasterly wind and topography may play the main role in this event ; ( 2 ) the easterly cold air rushing into the southern shaanxi province in the lower troposphere was strongly relative to the form of surface cold - front type of occlusion ; ( 3 ) there were two reasons for the secondary circulation ' s strengthen in the evening, one was the effect of a mountain - valley wind and the other may be latent heat leading to ascending motion ; ( 4 ) the shape of potential instability stratification corresponded well with the development of the warm - moisture advection ; and ( 5 ) the vapor providing essential thermodynamics was transported by a southwesterly low - level jet from the bay of bengal and the south china sea. furthermore, with the effect of terrain, the southern shaanxi province became the center of this extremely heavy rain process
中尺度結構分析表明，本次暴雨具有明顯的中尺度特徵，是由三支氣流共同作用的結果，分析發現（ 1 ）地面東南風和地形在這次大暴雨過程起主要作用； （ 2 ）東路冷空氣主要是通過中低層侵入陜南地區的，並與地面冷式錮囚鋒的形成密不可分； （ 3 ）夜博士論文:中尺度地形對陜南暴雨的影響研究間垂直次級環流發展加強可能有兩個原因，一個是由於地形山谷風的作用，另一個是降水的潛熱釋放激發了上升運動: （ 4 ）位勢不穩定層結的形成與低層暖濕平流的發展有很好的對應關系; （ 5 ）本次暴雨的水汽主要靠偏南風急流將孟加拉灣和中國南海的水汽輸送至西北地區東部，為暴雨的發生提供了必要熱力條件。 -
It is shown in the simulation that sliding mode control can guarantee the stability and robustness while vehicle is braking even if abs operates at the instability region of the adhesion coefficient and wheel slip curve or the surface condition changes, which is better than the pid control and nonlinear pid control
模擬結果顯示，即使在附著系數和滑移率關系曲線的不穩定區域，或是路面狀況發生變化，滑模控制也能保證制動的穩定性和魯棒性，其控制效果優于pid和非線性pid控制效果。 -
The spontaneous reduction of ni3 + to ni2 + is considered to the actual origin of chemical instability of linio2 during storage. the corresponding oxidization of lattice oxygen o2 " to active oxygen species ( o -, o2 - ) is thought to the direct cause of formation of li2co3 and adsorption of h2o and co2 on the surface of stored materials
Linioz電極材料中自發的ni3 + * ni2 +還原過程被認為是其貯存期間性能變質的產生根源，與之相對應的氧負離子生成活性氧物種則是電極材料表面形成lizc03及其它吸附物種的直接原因，而空氣中的coz和hzo促進了整個氧化還原反應的進行。 -
Based on tree data structure, the cartesian grids about 2 - d and 3 - d configurations are generated using the surface - cutting procedure. in the course of grid generation, a two - step ray - casting algorithm to excluded cells inside the body and a cell - merging technique to avoid numerical instability are fully developed. after creating these surrounding grids, the cell - cutting algorithm is designed to perform geometry - based refinement of grids, and greatly improve the applicability and quality of grid generation
採用物面切割，基於叉樹數據結構，發展了一種普遍適用於二維和三維外形的直角切割網格生成方法；構造兩步射線求交演算法，刪除外形內的固體網格，以及小網格合併演算法，確保網格質量和流場計算的穩定性；運用對任意網格的切割細分演算法，實現了針對幾何外形的自適應網格加密，使得網格生成更具普適性和靈活性。 -
Measurement and characterization of surface texture is an important aspect of precision metrology. historically this has involved partitioning a profile into different wavelength regimes referred to as roughness, waviness and form followed by numerical quantization. parameters computed are then inspected for tolerance compliance to ensure a part performs its intended function. this approach is satisfactory when the specification has been carefully determined and the process is stable. however, when the manufacturing process is under development or when instability or modifications to the process invalidate specifications, there is a need to study surface finish parameters in relation to functional performance or process measures. in this context, the problem of surface texture classification and recognition are discussed. advanced techniques developed for this purpose along with applications are presented. also, the techniques discussed here will be useful across large bandwidth, from the characterization of nano scale to traditional micro scale surfaces
表面結構的測量與特徵描述是精密計量技術的一個重要方面，傳統上包括將輪廓情況根據不同的波長范圍劃分為粗糙度、波紋度和形狀及后續的數字量化.按算得的參數檢查它是否為公差允許，以保證零件執行其指定的功能.當技術特性已經經過仔細確定，並且其過程穩定時，該方法是令人滿意的;但是，當製造過程正在進行中或過程的不穩定、過程變化使技術特性失效時，就需要研究和功能表現及過程評定相關的表面參數.討論了表面結構的分類與識別問題.同時闡述了為此目的而開發的先進技術及其應用.所研究的技術對從納米尺度到傳統的微米尺度的較大帶寬范圍內的表面特徵描述都是有效的 -
In loess plateau areas, dry and varied climatic condition was the main reason that resulted in the instability of soil moisture in surface layer. and because of the bad soil pedality and pore continuousness, the water in soil deep layers was difficult to supplement for that in surface layer. so, soil moisture of surface layer varied commonly and strongly
黃土高原地區乾燥、復雜多變的氣候條件導致該區土壤表層一定深度的濕度隨時空變化非常劇烈；而且，該區土壤的結構性和孔隙連續性都比較差，深層土壤水分難以到達表層，使得土壤表層處于經常性的干濕交替變化過程中。 -
A sensitive experiment is also performed to prove that dynamical instability of low level atmosphere would strengthen the entrainment of the sand particles in surface
最後本文通過動力穩定性對起沙影響的敏感性試驗證明了低層大氣的動力不穩定能增強起沙。 -
Potential instability that exists with conditional symmetrical stability make the vertical ascend movement in e big value area and slope ascend movement in e surface ( meiyu front area ) produce and maintain
位勢不穩定和條件性對稱不穩定共存使得在_ e高值區域的垂直上升運動和在_ e面（梅雨鋒區）上的斜上升運動得以產生和維持。 -
The result also shows, for the waves of 0. 5 k < 6, the nonlinear baroclinic subcritical instability easily occurs than the barotropic one. 2. a two - layer quasi - geostrophic model forced by surface friction and radiative relaxation is used to study numerically the phenomenon of subcritical instability in baroclinic atmosphere
文中還指出對於0 . 5 k 6的中等波長的波動，非線性斜壓亞臨界不穩定比正壓亞臨界不穩定更易發生，這與實際大氣中的情況類似。 -
At present, equipments of powders surface modification used in our country, which have many disadvantages, such as bad dispersion properties, bad modification effect, instability of product quality and small production scale, are not fulfilled applied demand of the powder industries
目前國內的粉體表面改性裝置大都存在著分散性差、改性效果不理想、產品質量不穩定以及生產規模較小等特點，遠遠不能滿足粉體行業的應用需求。 -
In the second experiment, the topography stirred waves in a to - and - fro current is simulated, in which the rough relationship of the stirred waves and the topography is made out, a phenomenon of high frequency instability and breaking of surface on curtain condition is detected and analyzed
另一項實驗是借用地形的往復運動產生的波動，模擬往復流中由地形激發的波動現象，找到了往復流地形波與往復頻率和地形高度之間的初步關系，發現了由地形引起的高頻不穩定和破碎現象並給出了初步的解釋。
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