體育專業(yè)外文翻譯3

1、<p>　　本科畢業(yè)設計外文資料翻譯</p><p>　　系 別： </p><p>　　專 業(yè)： </p><p>　　姓 名： </p><p>　　學 號：

2、 </p><p><b>　　2012年5月5日</b></p><p><b>　　外文資料翻譯譯文</b></p><p>　　起源于法國的網(wǎng)球現(xiàn)在成為了全世界最流行的球類運動之一，深受戶外運動人士的喜愛。但事實上，作為一個對抗性的運動，當你只有一個人的時候，或許也只能徒喚奈何了，而我們的這個

3、網(wǎng)球發(fā)球機的設想，便是為了應對這種情況而產(chǎn)生的。盡管可能無法獲得如同與人對抗時的樂趣，但對于技術的提高與自身的鍛煉還是有很大的幫助的?，F(xiàn)在主流的網(wǎng)球發(fā)球機是靠兩個輪子的相對旋轉時擠壓網(wǎng)球將網(wǎng)球打出，網(wǎng)上可以找到很多照片，發(fā)球機品牌有TENNIS TUTOR和LOBSTER可供選擇。</p><p>　　在我國，設計一種既實用，又經(jīng)濟的網(wǎng)球發(fā)射器，讓網(wǎng)球愛好者能更舒適，更有效地進行多球練習，是很有必要的。</

4、p><p>　　由相關文獻和網(wǎng)上資料調查得知：國外對網(wǎng)球發(fā)射器的研究開始得相對較早，最早的專利是1998年美國的Rose發(fā)明的。此后，各國紛紛開始投入此項研究，其中美國、英國和日本占主導地位，技術成熟，且有一些產(chǎn)品已經(jīng)投入市場使用。此外，國外對網(wǎng)球接發(fā)球的研究要細膩得多，除了通過對蹬地轉體到鞭打等增加發(fā)球時速的一系列動作的研究外，更是要求如何在發(fā)球的過程中，是核心力量更集中，逐漸由上步的動作改為不上步。我國對此類裝置

5、的研究雖然起步較晚，但近些年來也涌現(xiàn)出了很多這方面的想法和創(chuàng)意，但是并沒有申請國家專利。目前我國的大部分網(wǎng)球發(fā)射器生產(chǎn)廠家還是應用國外的網(wǎng)球發(fā)射技術。我國的網(wǎng)球發(fā)射技術既不先進也不十分成熟。</p><p>　　國內市場主流的網(wǎng)球發(fā)球機品牌有TENNIS TUTOR和LOBSTER，通過圖2-1你可以看出它們在前部都有個出球口，通過出球口可以看見兩個輪子，就是這兩個由電機帶動的輪子通過快速旋轉將球擠壓射出。所區(qū)別

6、的是，有的網(wǎng)球發(fā)球機TUTOR-PROLITE系列，其特點是極其便攜。"上下并排"的有TENNIS TUTOR系列和LOBSTER-ELITE系列，這種帶來的好處是球是通過上下兩個輪子的不同的旋轉速度可以把球擠出時產(chǎn)生可以調整的上旋或下旋。</p><p>　　一般網(wǎng)球發(fā)射器基本原理：網(wǎng)球由調速電機驅動的下球盤落入下球口，經(jīng)過下球通道到達兩個擠球輪之間，經(jīng)過擠球輪的摩擦作用將網(wǎng)球發(fā)出，不調速電

7、機經(jīng)過曲柄搖桿機構帶動擺動軸、支架、調速電機、擠球輪在鉛垂平面內擺動。發(fā)球機箱座上裝有不調速電機、曲柄搖桿機構、箱體擺動軸、行走輪，不調速電機經(jīng)過曲柄搖桿機構帶動箱體擺動軸擺動，使發(fā)球機箱體在水平面內往復擺動，發(fā)球機箱體通過箱體擺動軸與發(fā)球機箱座連接。用本實用新型訓練用的網(wǎng)球發(fā)球機可以控制每分鐘發(fā)球的數(shù)量，可以控制發(fā)出各種速度的上旋球、下旋球和不旋轉球，可以使網(wǎng)球落入對方場地的不同位置。</p><p>　　在網(wǎng)

8、球發(fā)射器的世界里，美國的發(fā)球機科技是最為先進的。其發(fā)射器獨有的自動模式功能能夠實現(xiàn)全場的任意發(fā)球；并可以調節(jié)難度級別。仿真性非常強，適合各種水平的選手進行專業(yè)的訓練?？梢匀我庹{節(jié)發(fā)球的高度，如平擊球，高吊球等。也可根據(jù)使用者的要求需要選擇定點發(fā)球和多檔搖擺功能等。還有專用遙控機，實現(xiàn)遠程的控制。其內部有減震和靜音裝置，能夠有效降低噪音。這用發(fā)球發(fā)射器對于初級者和晉級者都能提供最大的輔助。</p><p><

9、b>　　外文原文</b></p><p>　　Originated in the French tennis has now become one of the world's most popular sport, by outdoor sports lovers. But in fact, as a competitive sport, when you have only one

10、person, perhaps the only uter bootless cries, and our tennis ball machine vision, it is in order to cope with this situation and the. Although may not be as against everyone 's pleasure, but for technical improvement

11、 and its exercise is very helpful to the. Now the mainstream of tennis serve machine is driven by two wheels whe</p><p>　　In our country, to design a practical, economic tennis ball launcher, let tennis love

12、rs can be more comfortable, more effective multi ball practice, is very necessary.</p><p>　　By literature and online data survey: foreign to the tennis ball launcher research began relatively early, the earl

13、iest patent was 1998the United States Rose invention. Since then, many countries begin to put into the study, including the United States, Britain and Japan dominate, mature technology, and some products have been put in

14、to the market use. In addition, abroad on tennis return of service research to be much more delicate, except through the ground turn to flogging, increased driving s</p><p>　　Country market mainstream tennis

15、 ball machine brand TENNIS TUTOR and LOBSTER, through the2-1you can see them in front of a ball outlet, through a ball outlet can see two wheels, the two driven by a motor wheel through rapid rotation ball extrusion inje

16、ction. The difference is, some tennis serving machine TUTOR-PROLITE series, which is characterized by extremely portable. " On the side" with TENNIS TUTOR and LOBSTER-ELITE series, the benefits are ball is thro

17、ugh the upper and lower two wheels of </p><p>　　The general principle: tennis tennis ball launcher by motor driven ball disc into the ball, after the ball channel reaches the two squeeze ball wheel, after sq

18、ueeze ball wheel friction will not speed regulating motor through a tennis, crank and rocker mechanism drives the swing shaft bracket, motor speed, extrusion, ball wheel in lead vertical plane of swing. Tee box seat is p

19、rovided with no speed regulating motor, a crank rocker mechanism, a swing shaft, a walking wheel box, not speed regulatin</p><p>　　In tennis ball launcher in the world, the United States of America serving m

20、achine technology is the most advanced. Its transmitter is a unique automatic mode functions to achieve the arbitrary service; and can adjust the difficulty level. Simulation of very strong, suitable for all levels of pl