例句與造句

1. Given their oib - type trace element pattern and depleted sr - nd isotop ic composition , the datong alkali basalts are interpreted to be generated within the asthenospheric mantle but at a shallow depth compared to the yangyuan alkali basalts . the datong tholeiitic basalts exhibit low snd values ( 1 - 4 ) . their sr - pb and nd - pb isotopic correlations are consistent with a mixing between the depleted mantle and emi - like component
   大同地區(qū)第四紀時期同時產(chǎn)出堿性和拉斑玄武巖，堿性玄武巖也主要來自于軟流圈地幔，巖漿起源深度小于陽原樣品；拉斑玄武巖具有較低的nd ( nd = 1 - 4 ) ， pb - nd以及pb - sr同位素相關(guān)關(guān)系暗示其可能是dm和型富集地幔( emi )組分之間混合的結(jié)果，反映了軟流圈和巖石圈地幔之間的相互作用，巖漿起源較淺。
2. In this dissertatio n , product elements pattern class and geometric feature class are defined , and a product domain knowledge base is built , including product elements pattern rules database , geometric features database , and product template for elements mapping . based on the pattern matching and constraint adding mechanism , the sketch is interpreted and regularized
   構(gòu)建了產(chǎn)品領(lǐng)域知識庫，包括產(chǎn)品元素模式規(guī)則庫、產(chǎn)品元素幾何特征庫和產(chǎn)品模板映射器，定義了產(chǎn)品元素模式類和幾何特征類，通過一會模式匹配機制和約束施加機制，實現(xiàn)對草圖元素設(shè)計層的解釋和規(guī)整。
3. It's difficult to find element pattern in a sentence. 用element pattern造句挺難的