spreading coefficient 中文意思是什麼
spreading coefficient
解釋
流散系數；擴展系數- spreading : 就偵察線散開
- coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
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Results showed : ( 1 ) if the proportion of water in the soil is lower than wilting coefficient, and if irrigating water is very little, ( irrigating water is spreading horizontally and vertically ) the relationship between the horizontal width ( x ) and the ? rtical depth ( y ) is remarkable. the equation is y - 0. 02 12x2 + l. 8546x - 17. 88. the related coefficient is r = 0. 9350
結果表明： （ 1 ）在土壤含水量低於萎蔫系數的乾燥條件下，進行微量穴滴灌，滴灌點土壤濕潤面直徑x與最大垂直面滲透深度y呈顯著相關，數學模型為： y = - 0 . 0212x ~ 2 + 1 . 8546x - 17 . 88 ，相關系數r = 0 . 9350 （ 2 ）在微量補水灌溉情況下，只有灌水量大於4000ml /穴，才能使滴灌水滲透到20cm以下土層，達到作物根系集中層，否則水分很難被作物吸收，造成滴灌水的浪費。 -
Methods an s - curve figure and spreading coefficient were introduced to compare equality of heath distribution in different population
方法引進了s曲線和分佈系數來比較不同人群健康分佈的公平性。 -
( 4 ) after the rationality of numerical simulation has been testified, going along a series of numerical simulation and performance research. firstly, the thermal superposition principle, based on adiabatic heat transfer coefficient and superposition kernel function, is put forward for the research of discrete heat sources ’ temperature field and thermal conjunction effects secondly, decreasing thermal spreading resistance is good for improving the heat transfer performance, and several methods are discussed
第一、在熱疊加原則理論基礎上，利用數值模擬方法研究了固態組件的溫度場和多個分散熱源在熱擴展體上的熱耦合效應，而且證明了強迫對流情況下熱疊加原理形成的溫度場和系統模擬時的溫度場計算結果非常吻合;第二、針對固態組件里集中熱源的特點，對擴展熱阻進行了研究，從理論上探討了減小擴展熱阻改善散熱性能的方法。
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