例句與造句

1. first, single led is analysed and disposed approximately to build the mathmatical model, light energy of one point on screen is calculated by algebraic addition, then the distribution of light energy on the whole area of screen is deduced
   首先對單個發(fā)光二極管進(jìn)行分析，對其做近似處理，建立數(shù)學(xué)模型，用代數(shù)疊加的方法來推導(dǎo)光幕面內(nèi)某一點的光能量。
2. based these researches acquired and using a mathmatical model, this thesis tries to research the contaminant concentration distributions of three-dimention indoor turbulent flow by means of computational fluid dynamics and heat transfer, and then works out the ventilation efficiency
   本文企圖在前人的基礎(chǔ)上，通過建立相應(yīng)的數(shù)學(xué)模型，用流體流動數(shù)值計算方法來模擬室內(nèi)三維的紊態(tài)氣流中的污染物濃度分布，進(jìn)而分析計算室內(nèi)的通風(fēng)效率，得出通風(fēng)效率較好的室內(nèi)氣流組織形式。
3. in this thesis, a internal and external analyse and research about design, modeling and machining of ball-end cutters is reviewed . on the base of grinding trait of mk6335a five-axis numerical control drill grinder, in the present study, differential geometry, ruled surface concept, envelope and inverse-envelope theory, coodinate transfer and numeric analyse are used to develop a mathmatical model and systematic method for the design, analyse and simulation of ball-end cutters
   本論文在國內(nèi)外關(guān)于球頭立銑刀設(shè)計、建模、加工等方面研究的基礎(chǔ)上,根據(jù)現(xiàn)有的mk6335a五軸數(shù)控鉆尖磨床刃磨運(yùn)動的特點,應(yīng)用微分幾何、包絡(luò)與反包絡(luò)理論、坐標(biāo)轉(zhuǎn)換、數(shù)值分析等理論知識,研究了基于五軸數(shù)控磨床加工球頭立銑刀的數(shù)學(xué)模型及分析與仿真。
4. It's difficult to find mathmatical model in a sentence. 用mathmatical model造句挺難的