例句與造句

1. The fractal increment of dynamic subsidence of the ground surface point induced by mining
   采礦引起地表點(diǎn)動(dòng)態(tài)下沉的分形增長規(guī)律研究
2. The following is a simple introduction to the thesis ' s main content : 1 . error analysis in surface fea variation of errors against the normal angular of surface points is produced about surface fea . a angular is selected according to error of surface fea
   下面簡要介紹本文研究的主要內(nèi)容： ( 1 )曲面有限元計(jì)算的誤差分析在對曲面的有限元計(jì)算產(chǎn)生的誤差分析中，得出了曲面有限元計(jì)算的誤差和曲面上相鄰兩點(diǎn)法線夾角的關(guān)系。
3. Based on the research of the characteristics of piezoelectric ceramic , this paper presents the analysis of the movement of the stator surface points and work principle of motor . this paper describes a theory about the influence of the ultrasonic vibration on the frictional properties of ultrosonic dring , and finds that the horizontal vibration produces friction driving force and vertical vibration affects horizontal driving effect
   并且對行波型超聲波電動(dòng)機(jī)的減摩現(xiàn)象進(jìn)行了研究，發(fā)現(xiàn)在接觸區(qū)定子表面上一點(diǎn)的水平振動(dòng)產(chǎn)生摩擦驅(qū)動(dòng)力，垂直振動(dòng)只起影響水平驅(qū)動(dòng)效果的作用，得出垂直方向超聲振動(dòng)具有減振作用是引起超聲驅(qū)動(dòng)動(dòng)摩擦系數(shù)降低的原因。
4. It's difficult to find surface point in a sentence. 用surface point造句挺難的