universal contact 中文意思是什麼
universal contact
解釋
萬能接頭萬能介面-
For the sake of realizing the structural lightweighting design on ball cage patterned constant speed universal joint, taking the maximum contact stress of ball cage patterned constant speed universal joint, overall contacting deformation and plastic deformation as foundations, a preliminary study was carried out respectively on two kinds of ball cage patterned constant speed universal joints with their number of balls as 6 and 8
摘要為了實現球籠式等速萬向節的結構輕量化設計，以球籠式等速萬向節最大接觸應力、接觸總變形和塑性變形為依據，分別對鋼球數量為6和8的兩種結構的球籠式等速萬向節進行了初步研究。 -
Success in optimizing the obturating performance of the obturator of the breech mechanism shows that the method and technology for optimal design of nonlinear multi - component structural system with contact put forward in this thesis is effective and practical. structural optimization problems that are difficult to solve through the optimization method available in the universal cae software can be accomplished by means of this method
對炮閂閉氣結構閉氣性能優化的成功說明了本文提出的對存在接觸關系的多構件非線性結構（裝配體）系統進行優化設計的方法和技術途徑具有實用價值，可以解決在通用cae軟體中現有優化演算法難以解決的結構優化問題。 -
Cai, 1998 ; bikai nie, & bingying wang, 2000 ) provided evidence that, while our students outperformed on problem - solving tasks, the result was not the same on problem - posing tasks. because most students learned mathematics and developed increased mathematical capacities only when they participate in instruction focused on rich and worthwhile mathematical activity. however, in the circles of mathematics education, there was a universal sense, that is : our mathematical education loses contact with reality ; students solve problems not related to real life ; the mathematical activity students conducted mostly focused on memorization and mechanical use of procedures rather than the use of mathematical knowledge and tools to explore patterns, frame and solve problem, etc.
課堂是學生學習數學、發展數學認知的主陣地，我國學生的數學認知在上述方面表現出來的差異可以從數學課程與教學中尋找原因： 「中國數學教育脫離實際」 （張奠宙， 1994 ） ； 「在強調素質教育的今天，絕大多數課堂教學仍然是傳授知識加技能訓練的傳統教學模式」 ， 「學生的數學學習仍然是一種『復制型』的『消極』學習」 ， 「學生幾乎沒有獨立思考、探索發現的機會」 （季素月， 1996 ） ；我國數學課程在「探究」和「背景」上「較薄弱」 ，在「運算」和「推理」等方面「要求過高」 （鮑建生，博士學位論文， 2002 ） 。 -
Spiral bevel gear presents serials of good performance at transimision, carrying capability etc, of which klingelnber cycloid bevel gear is mostly widely used. it has its own characteristics : ( 1 ) the concave and convex flanks of the gear slot are cut at the same time continuously, this benefit to improve productivity. ( 2 ) universal double cutter heads are used which make it easier to control the tooth contact area
螺旋錐齒輪具有傳動性能優良，承載能力高的優點，克林貝格擺線錐齒輪是一種最具代表性的螺旋錐齒輪齒制，除具有一般螺旋錐齒輪的優點外還具有以下的特點: （ 1 ）採用連續分度雙面法銑齒，避免了跳齒分度，有利於提高加工精度。
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