A Discussion on Blow Performance Limit of Clutch Screw Presses;
離合器式螺旋壓力機極限打擊性能的討論
The Frmula Judging Method of Edge-turning Limit of Interior Holes;
內(nèi)孔翻邊極限的公式判定法
The Limit of Human Performance in the Pole Vault;
人類撐桿跳高成績的極限研究
Environmental problems are caused by human's act ivities and their influences , which go beyond the limit of environment.
環(huán)境問題是人類活動及其影響超出環(huán)境承受能力的極限所造成的后果。
A detailed discussion on the limit of function of functions is taken and six theorems are given in this paper.
本文對復合函數(shù)的極限做了細致的討論 ,給出了 6個定
How to get the limit of the dual function is a difficult point in advanced maths.
二元函數(shù)求極限是高數(shù)中的難點,現(xiàn)歸納了6種求二元函數(shù)極限的方法,分別為:直接證明、先估值后證明、利用二元函數(shù)的連續(xù)性、用無窮小量與有界變量的乘積仍為無窮小量的結(jié)論、用重要極限limx>0sinx=1、用兩邊夾定理。
The comparison of new national standard “limits and fits” and “surface roughness” with the old one;
新國家標準《極限與配合》、《表面粗糙度》等與其舊標準的對比
The Generalized Differential Theorems of Mean and Their Applications in Getting Limits;
廣義微分中值定理及其在求未定式極限中的應用
The Historical Evolution and Analysis About the Concept of Limitation;
極限概念的歷史演變及分析
In calculus,ξ-N method and ξ-δmethod are used to interpret limitation conception,which is a teaching difficult point.
針對微積分課程中用方法和方法講述極限概念這一教學難點,提出了講授中應著重理解嚴格極限概念產(chǎn)生的歷史背景及其對微積分發(fā)展的巨大影響,揭示了其豐富內(nèi)涵,并且采取適當教學方法,既突破了難點,又啟發(fā)了學生對直覺思維和邏輯思維的思考,培養(yǎng)了邏輯推理能力。
Paper proves three theorems with the strict definition of extreme limit,then at the foundation of the three theorems we can avert using abstract ε,δ and N when proving an extreme limit problem.
用極限的嚴格定義證明了三個定理,在定理的基礎上再證明極限問題時,就可避開使用抽象的ε、δ和N。
Calculating extreme limit is one of the difficult parts in the higher maths.
極限是高等數(shù)學教學中的一個難點 ,而極限理論又是研究連續(xù)、導數(shù)等內(nèi)容的重要工具。