compare a to b 中文意思是什麼
compare a to b
解釋
把a比喻-
The elastic foundation model is considered as two - parameter elastic foundation model and its effect to moderate - thick plates are taken into account by a set of governing differential equations. united with hu hai - chang ’ s function, least squares collocation weighted residual method which uses b - spline function as trial function is put forward for solving the bending problems. compare with the results of finite element method of lines, spline finite strip method, accurate solution of series etc. it is proved that the method in this article has adequate accuracy and practical feasibility
本文採用瑞斯納中厚板理論求解彈性地基板，建立雙參數地基與中厚板相互作用的控制微分方程，結合胡海昌的解耦函數，運用雙五次b樣條函數作為試函數的離散型最小二乘加權殘值法分析了雙參數地基上的中厚板的彎曲問題，並將結果與有限元線法、有限條法、級數精確解等進行比較，證明本文方法具有足夠的精確性與實際的可行性。 -
B. please compare the new textbook to the old one and choose a better edition
請比較新舊教科書然後選出比較好的版本。 -
A randomized complete block design ( rcbd ) has been used under the field conditions to compare the effect of four treatments : 1 ) entire quantity of straw returned to the soil, but not cut into pieces ( treatment a ), 2 ) half quantity of straw returned, not cut into pieces as in treatment a ( treatment b ), 3 ) half quantity of straw cut into pieces returned ( treatment c ), 4 ) ck ( treatment d ), without any straw returned to the filed
田間實驗採用隨機區組法，分四種情況： 1 ）全量整株稻草還田； 2 ）半量整株還田； 3 ）半量切碎還田4 ）對照，即除根茬外無額外稻草還田四個處理。試驗結果表明，除處理2外，所有處理對土壤有機質的影響不明顯，但稻草還田處理降低了土壤的容重，這意味著土壤的孔隙度增加了。 -
Many foreign mathematicians have respectively devoted to researching the hamiltonian systems, boundary value problem and the oscillation, the asymptotic behavior, the stability of the dynamic equation on time scales, such as erbe l, bonnet m, peterson a, agarwal r, d sl o, kaymakcalan b, lakshmikantham v etc. in general, the research methods they used are just as the following : firstly, we compare the method of differential equation and with the corresponding difference equation, then unite them, finally, extend the results to other time scales
近十年來，時間模上的動力學方程的研究得到了較快的發展，國外不乏有許多數學大家erbel ， bohnerm ， petersona ， agarwalr ， d slo ， kaymakcalanb ， lakshmikanthamv等都分別致力於時間模上哈密爾頓系統，時間模上動力學方程的邊值問題以及時間模上動力學方程的穩定性、振動性、漸近性等方面的研究。總的來看大家所採用的研究方法大致都是把微分方程與差分方程研究方法進行比較、統一，然後再推廣到其它時間模上。
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