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snell 短語和例子snell1adj.〔方言〕1.活潑的,敏捷的...

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This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails . this monitoring system is a non destructive testing system , which adopts avr mcu and high - precise time chip processing as the core of it , and adopts the critically refracted longitudinal wave as the object of measuring . my studying focuses on the theory of the monitoring system , which will be listed in this arctile : according to the snell theory , the theory of motivating of critically refracted longitudinal wave is described in details , and the finite element software is used to emulate the propagating course . the formulas of calculating the pts of swr are taken from the acoustoelasticity theory , and the calculating the parameters is introduced . according to assemble materials , three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described , which are measuring the sound - time in changeless distance , ultrasonic critical - angle refractomery and frequency spectrum , the first way of ways is used in this experiment system . the factors , which effect the monitoring system , are assaid in some degree based 本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊,包括根據snell原理,研究極限折射縱波的激發機理,并使用有限元軟件ansys進行仿真;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式,并對其中參數的求解方法進行介紹;根據收集的資料,介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法,即固定距離測量聲時法、臨界角折射法和頻譜分析法,本實驗系統使用的是第一種;根據實驗經驗以及相關資料,分析了影響極限折射縱波測量溫度應力的幾個因素,并提出了相應的解決方法;根據實驗系統的需要,獨立設計并加工出相關配套的實驗設備,包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。

At present , our top - ranking brand gdr helmets have obtained snell . m205 , ece , dot approval that are the highest safety testing standard in europe and america . the competitive products jds helmets accord with gb1988 standard and completely obtained ccc china compellent certification , they win the approbation and appraisement of wide scope in the market , also they are the knockout products of our company 認證,以穩定的質量和不斷的創新贏得了市場的廣泛認可和贊譽,已成為我公司產銷的主推品牌近年來,為了更好地完善產品配套服務,我們連續研制推出了摩托車尾箱防盜鎖風雨衣等配套產品,深受用戶好評。

Chen is in very good company , as all the winners and highly commended entrants in the 2006 emerald efd outstanding doctoral research awards come from excellent universities in europe , australia and singapore , noted prof . robin snell , lingnan s director of business programmes 嶺大商學課程主任robin snell教授表示,是次比賽的參與者及得獎者皆來自歐洲澳洲及新加坡的頂尖學府,陳博士這次獲獎足以肯定陳博士的實力。

For experimentation and development with derby , snell notes that it is helpful to integrate the creation and packaging of the derby databases with the ant - based compilation of application binaries by creating a handful of custom , simple ant tasks Snell強調,為了使用derby進行實驗和開發,通過創建少量定制的、簡單的ant任務,將derby數據庫的創建和打包與應用程序二進制文件基于ant的編譯相集成,這樣很有幫助。

Compared with tranditional materials , electromagnetic waves transmitted in such material will behave some fantastic phenomena , such as negative snell refraction , reversed dollper effect , reversed cerenkov radition , and so on 電磁波在這種介質中傳播時將顯現與通常介質不同的各種逆向或反向效應,如負折射效應、逆多普勒效應、逆切侖科夫輻射等等。

In this article , author james snell introduces a handful of apache ant tasks that make it easier to incorporate the building and distribution of derby databases into an applications build process 在這篇文章中,作者james snell介紹了少量apache ant任務,這些任務使得將derby數據庫的構建和發布包含到應用程序的構建過程中變得更加容易。

The two point ray tracing is based on the snell theory and the fermat “ minimum travel time principle “ , which advantages is that it can calculate the accurate ray path from the source to the receiver 兩點射線追蹤主要是通過snell定理和費馬最小時間原理確定激發點和接收點之間精確的射線路徑。其優點是能夠精確得出反射點的位置。

Ansi or snell approved helmet is required during the entire bike race . riders without approved helmets will be immediately disqualified . leather or vinyl hairnet helmets are not allowed 賽會建議運動員使用經由ansi或snell認可之自行車頭盔。運動員在自行車賽程中未能戴上賽會認可的自行車頭盔將會被即時取消參賽資格。

James snell is a member of the ibm emerging technologies toolkit team and has spent the past few years focusing on emerging web services technologies and standards . he maintains a James snell是ibm emerging technologies toolkit開發團隊的一個成員,在過去的幾年中,他一直專注于新興web服務的技術與標準。

Author james snell continues a short series of discussions that focus on the application of well - defined and proven web application design strategies to the world of web services 作者james snell為web服務世界提供了簡短系列的關于定義良好的且提供web應用程序設計策略的應用程序的討論。

The director of business programmes of lingnan , prof robin snell said he was delighted that the programme had received generous support from a number of major financial corporations in hong kong 嶺大商學課程主任施樂民教授表示,是次計劃得到多間財經界主要機構的支持,成績令人鼓舞。

James snell is a member of ibm s emerging technologies toolkit and has spent the past few years focusing on emerging web services technologies and standards James snell是ibm的emerging technologies toolkit的成員之一,在過去幾年里,他的時間主要花費在了新興的web服務技術和標準上。

James snell is a member of the ibm emerging technologies toolkit team and has spent the past few years focusing on emerging web services technologies and standards James snell是ibm emerging technologies toolkit開發組的成員,過去的幾年里他主要研究新興的web服務技術及標準。

James snell is a member of the ibm emerging technologies toolkit and has spent the past few years focusing on emerging web services technologies and standards James snell是ibm emerging technologies toolkit的成員,在過去的幾年里,他一直致力于新興的web服務技術和標準。

Mountain bike : riders are required to wear astm , ansi or snell approved helmets , ride a mountain bike only and obey the rules of the road 山地車:騎手們被要求穿astm , ansi或敏捷的同意的頭盔,僅僅騎一輛山地車并且服從交通規則。

James snell is both an author and a developer and is one of the newest members of the ibm web services development team James snell既是個作家又是個開發者,并且是ibm web服務開發小組的最新成員之一。

Furthermore , our company is the fourth enterprise which the multi - sports helmets have passed snell n94 standard in the world 我公司生產的多用途運動頭盔,全球第四家通過snell n94標準認證

Road bike : riders are required to wear astm , ansi or snell approved helmets and obey the rules of the road 道路自行車:騎手們被要求穿astm , ansi或敏捷的同意的頭盔并且服從交通規則。

Reflection , refraction , snell ' s law , critical angle , brewster ' s angle , reflection and transmission coeffs 2 2反射,折射,司涅爾定律,極限角,全反射角,反射與穿透的交互作用。