常見例句Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction. 進(jìn)化被視為一個(gè)分枝過程；隨著時(shí)間的推移，種群發(fā)生改變，種群也可能進(jìn)化成為分枝，也可能相互雜交或滅絕終止。In this paper the forward displacement analysis of a speciat Stemard-Gough platform by transforming the equations describing the problem into the matrix eigen- problem is presented. 對(duì)于描述一類并聯(lián)機(jī)構(gòu)正解計(jì)算的方程組，通過化成矩陣特征問題的手段計(jì)算正解。Producing Speciat Type Cement Used of Low Class Ironstone Insctead of Iron Powder 用低品位鐵礦石替代鐵粉生產(chǎn)特種水泥的研究 返回 speciate