free variation 中文意思是什麼
free variation
解釋
自由變異-
Water transmitting rate of unsaturated soil also increased with the increasing of relative partial molal free energy variation, and relative partial molal enthalpy variation, in case that soil water content was constant
結果表明，在同一溫度條件下，提高土壤水勢可增加土壤非飽和導水率，呈現黃綿土> ，土。 -
After a long - term research, we introduced metal - mesh into ptfe thin lining with a particular technology, which enables it not to free expand or contract with the variation of temperature, improve its pressure and vacuum resistance capacity
本公司經過長期研究，於1988年採用特殊技術，將金屬網引入ptfe薄層內部，使ptfe層熱脹冷縮降低到與鋼外殼相一致，同時還增加了強度，提高了耐正、負壓性能。 -
The expressions can take into account some important aspects such as stress - free ground surface, incompression of soil, prebored hole and tubular pile. through the analysis of displacement field, the variation rules of horizontal and vertical displacements are obtained
由位移場的解析解分析可知，樁身整個深度內的水平向位移場是向外擠出，豎向位移場在表層土體表現為隆起，而深層土體表現為下沉。 -
In this paper, a class of the second order accurate explicit gauss schemes with staggered grids for the computation of solutions of hyperbolic conservation laws are presented, the advantages of these schemes are : riemann solver - free, faster and programming is much simple, no complete set of eigenvectors is needed and hence weakly hyperbolic system can be solved. in one dimensional case, these schemes are and total variation diminishing and convergence under the restriction of cfl condition, the convergence rate is the first order, and a pointwise error bound is presented
本文在交錯網格的情況下，利用gauss型求積公式構造了一類求解雙曲守恆律的時空一致二階顯式gauss型差分格式，這類gauss型差分格式，具有不需要求解riemann問題、計算簡單、工作量少、編程簡便等優美特點，而且由於這類格式在應用於求解方程組的時候，不需要對方程組進行特徵分解，因此可應用於求解非嚴格的雙曲守恆律方程組。 -
Non - oscillatory and non - free - parameters dissipative ( nnd ) finite difference scheme ( a total variation diminishing scheme ) with second order accuracy was adopted to solve the fluid dynamic equations, a finite rate chemical reaction model was developed to calculate ingredient producing rate, and an adi over relaxation iteration technique was used to solve the electromagnetic discretized equations
採用二階精度nnd格式求解流體力學方程組，採用有限速率化學反應模型計算組分生成率，採用交替方向隱式（ adi ）超鬆弛迭代法求解電磁場離散方程。 -
Habitat changing and its effect on birds were analyzed also. temmporal variation of density, biomass and ash free biomass of macrobenthic and at quanzhou and yunxiao mangrove areas was analyzed. the correlation between macrobenthic and waterbirds on mudflat was discussed
分析閩南沿海地區紅樹林區鳥類的種類、區系組成和時間動態；討論紅樹林對鳥類種類和數量分佈的影響；以及生境變遷對鳥類影響。 -
Second, by combining theories of strength of laminate with ga, a new gradient free optimization method with new code strategy is discussed. the representation itself does not change the nature of the problem, but effects the searching efficiency of the algorithm. so the representation of the parameters to be optimized is a very important factor and the new code strategy is also easy used with crossover operator and variation operator in ga applications
其次，本文根據層合板優化設計的具體問題提出了一種符號編碼方式，雖然優化參數的基因編碼表達方式並不能改變優化問題的本質，但是不同的編碼表達方式對于遺傳演算法搜索的效率和最終的優化結果有著重要的影響，因此優化參數的基因編碼表達是遺傳演算法應用於工程問題中非常關鍵的一步。 -
Express the differences of displacement variation of a mass subjected by a free damped vibration and a forced vibration, separately
分別敘述一質量受到無阻尼的振動與強制振動時位移變化的不同。
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