【正文】 t. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than 25,000 feet (7,620 meters). cause there 。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。突然想到那件藍格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場還沒有開始就宣告了終結(jié)的邂逅計劃 …… 那些年那些天的非做不可，終于和青春一樣，都將在我們的人生中謝幕。 Have declared the end of the encounter that haven39。 Those were broken into various shapes of stationery。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強心劑，或者說 ，是自以為是的精神寄托罷了。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時候是最后又打起了退堂鼓。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個人的時候，自己的想法總是特別地清晰。 Originally, this world, can produce a chemical reaction to an event, in addition to resolutely, have to do, and time. 原來，這個世界上，對某個事件能產(chǎn)生化學(xué)反應(yīng)的，除了非做不可的堅決，還有，時間。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。t really grow up, it seems is not so important。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional?？傆X得自己自己似乎應(yīng)該去做點什么，或者寫點什么。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年 齡已經(jīng)到了尾聲。s actions. CSKA said they were surprised and disappointed by Toure39。s 21 win. Michel Platini, president of European football39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。s antiracism taskforce, is in London for the Football Association39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。 課程設(shè)計是我們專業(yè)課程知識綜合應(yīng)用的實踐訓(xùn)練，著是我們邁向社會，從事職業(yè) 工作前一個必不少的過程．”千里之行始于足下”，通過這次課程設(shè)計，我深深體會到這句千古名言的真正含義．我今天認真的進行課程設(shè)計，學(xué)會腳踏實地邁開這一步，就是為明天能穩(wěn)健地在社會大潮中奔跑打下堅實的基礎(chǔ)． 說實話，課程設(shè)計真的有點累．然而，當我一著手清理自己的設(shè)計成果，漫漫回味這四周的心路歷程，一種少有的成功喜悅即刻使倦意頓消．雖然這是我剛學(xué)會走完的第一步，也是人生的一點小小的勝利，然而它令我感到自己成熟的許多，另我有了一中”春眠不知曉”的感 悟． 通過課程設(shè)計，使我深深體會到，干任何事都必須耐心，細致 ．課程設(shè)計過程中，許多計算有時不免令我感到有些心煩意亂：有 2 次因為不小心我計算出錯，只能毫不情意地重來．但一想起周偉平教授，黃焊偉總檢平時對我們耐心的教導(dǎo)，想到今后自己應(yīng)當承擔的社會責任，想到世界上因為某些細小失誤而出現(xiàn)的令世人無比震驚的事故，我不禁時刻提示自己，一定呀養(yǎng)成一種高 度負責，認真對待的良好習慣．這次課程設(shè)計使我在工作作風上得到了一次難得的磨練． 短短三周是課程設(shè)計，使我發(fā)現(xiàn)了自己所掌握的知識是真正如此的缺乏，自己綜合應(yīng)用所學(xué)的專業(yè)知識能力是如此的不足，幾年來的學(xué)習了那么多的課程，今天才知道自 己并不會用．想到這里，我真的心急了，老師卻對我說，這說明課程設(shè)計確實使我你有收獲了．老師的親切鼓勵了我的信心，使我更加自信． 最后，我要感謝我的老師們，是您嚴厲批評喚醒了我，是您的敬業(yè)精神感動了我，是您的教誨啟發(fā)了我，是您的期望鼓勵了我，我感謝老師您今天又為我增添了一幅堅硬的翅膀．今天我為你們而驕傲，明天你們?yōu)槲叶院?。在此期間我也失落過，也曾一度熱情高漲。因此，在加工時，主要應(yīng)考慮如 何提高生產(chǎn)率，降低勞動強度。刀具為硬質(zhì)合金車刀， 對工件的外圓進行加工。 經(jīng)過與指導(dǎo)教師協(xié)商，決定設(shè)計 1012 道工序 粗精車 Φ 8 Φ 62 的專用夾具。 f=按 CK6140機床說明書 f=1） .計算切削速度：按《切削手冊》表 ，切削速度的計算公式為（壽命選 T=60min） VC = vypV kfaTCvm式中 式中 vc =158,vx =,vy =,m=,vk 見《切削手冊》表 ，即 mvk =， svk =， kvk =1， krv =， Bvk = 所以 cv = m i n/******1*60 158 m= 2).確定機床主軸轉(zhuǎn)速： sn = min/* *10001000 rrd vwc ??? 按機床說明書，機床主軸轉(zhuǎn)速 ,切削速度為3).計算切削公時：按《工藝手冊》表 L= ,19m 1l =2mm,2l =0mm,3l =0 mt = fn llllw321 ??? = m in2** 219 ?? 工序 11：半精車 Φ 62， Φ 87的外圓 (1):計算切削用量 1）： 半精車 Φ 62， Φ 87 的外圓 確定外圓最大加工余量：已知外圓的單邊加工余量為 ，考慮到還需要精車，最大加工余量可按 2z=,一次加工， ap=1mm 2):確定進給量 f ，根據(jù)《切削用量簡明手冊》表 ，刀尖圓弧半徑 r=,f= 按 CK6140機床說明書 f=3） .計算切削速度：按《切削手冊》表 ，切削速度的計算公式為（壽命選 T=60min） VC = vypV kfaTCvm式中 式中