例句與造句

1. Along with the progress of drilling technology , many new types of bha such as steering motor assembly , dropping assembly with eccentric bend sub , dropping assembly with flexible connection are developed based on common building , dropping and holding assemblies . for using these bha , a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection . and its weighted residual solution is given . the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit , stabilizer , bend angle , diameter change , tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit . the software based upon this method runs well
   為了更好地應(yīng)用各種新鉆具，建立了適用于對(duì)普通下部鉆具、導(dǎo)向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進(jìn)行三維小撓度靜力學(xué)分析的數(shù)學(xué)模型，包括( 1 )微分方程； ( 2 )鉆頭、穩(wěn)定器、彎角、變截面、切點(diǎn)和井壁的邊界條件； ( 3 )鉆頭的側(cè)向力和鉆頭轉(zhuǎn)角.給出了該模型的加權(quán)余量解.用該方法編寫的軟件應(yīng)用效果良好
2. It's difficult to find residual solution in a sentence. 用residual solution造句挺難的