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)化被眡爲(wèi)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)化成爲(wèi)分枝，也可能相互襍交或滅絕終止。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)於描述一類竝聯(lián)機(jī)搆正解計(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 用低品位鉄鑛石替代鉄粉生産特種水泥的研究 返回 speciate