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機械制造專業(yè)英語教學案(編輯修改稿)

2025-05-14 02:55 本頁面
 

【文章內(nèi)容簡介】 flywheel during Deceleration. The flywheelbased hybrid drive concept has been under investigation for decades, even at Ford, but problems remain with building a production flywheel system. Likewise the wheelinhub motors, which are easy to package but present safety problems in the event of a singlemotor failure. The design es with a layered glass roof. To avoid turning the car into a hothouse, solarpowered cooling fans pull in cooler outside air and exhaust interior air. Another unusual feature is a turnover steering column that converts to righthand drive without modification. Many interior controls respond to a new voiceactivation system that operates without initial “training”. The development of a prototype that’s ready for the road is still several years away, Ford says.New words:Latest:最新的 shape:體現(xiàn) the event of:萬一 e up with :提出Consortium :聯(lián)營企業(yè) Affordable: 負擔得起的 Sedan 轎車 mpg = miles per gallon Synergy:協(xié)和 parablesize: 類似大小的curb :控制;約束 profile:外觀;外形 aerodynamic: 氣動的 fender :護板 drag: 阻力 directinjection :直接噴射的diesel :柴油引擎 turbo alternator: 氣輪交流發(fā)電機regenerative braking :恢復(fù)式剎車 recharge: 再充電 hybrid:復(fù)合式 exhaust:排出 turnover:翻轉(zhuǎn)式 steering column :操縱桿 voiceactivation::話音激活 respond to 對…..有反應(yīng) flywheelbased:以飛輪為基礎(chǔ)的away :尚由…….時間譯文:福特汽車公司最新設(shè)計的汽車,給“新一代汽車研究計劃”正在探索的各種設(shè)想賦予了具體的形象。該計劃是一家美國聯(lián)營企業(yè)為研制所謂“超級轎車”而制定的,其目標在于創(chuàng)制一種每加侖油可行駛80英里、大小可供家庭使用的轎車,擬在未來10年里投入使用。這種汽車名叫協(xié)和2010。其鋁制車身較類似的鋼制車身重量減輕了400磅左右,從而使控制重量減至大約2200磅。這種車較低的外形和氣動“柵欄”(縱向防護裝置)可將阻力減少到現(xiàn)有轎車的大約1/3。動力來自一臺直接噴射柴油渦輪交流發(fā)電機,它用飛輪來儲備供加速用的能量。用這個系統(tǒng)所產(chǎn)生的電流帶動每個輪轂上分別安裝的電力發(fā)動機,在減速時恢復(fù)式剎車給飛輪再次充電。甚至在福特公司,這種以飛輪為基礎(chǔ)的復(fù)合式驅(qū)動思想也已經(jīng)研究了幾十年,但是建造一個生產(chǎn)飛輪的系統(tǒng)仍然存在著問題。而且,輪轂內(nèi)的發(fā)動機易于組裝,但萬一單個發(fā)動機發(fā)生鼓掌就會出現(xiàn)安全問題。這種設(shè)想提出一種分層的玻璃頂棚,為了避免把汽車變成一間溫室,太陽能風扇吸入車外的清涼空氣,排出車內(nèi)的空氣。另一個與眾不同的特點是一個翻轉(zhuǎn)式的操縱桿,無須改動即可轉(zhuǎn)為右座駕駛。車內(nèi)許多控制裝置由一種新型的話音激活系統(tǒng)控制,無須初步訓練即可操作。福特公司說,研制這種可供上路的樣車還需幾年時間。三、Grammar機械工程英語的特點1.陳述句型多 句子的謂語動詞多數(shù)采用一般現(xiàn)在時態(tài) 1)The maximum stresses occur at the inner surface 最大應(yīng)力發(fā)生在內(nèi)表面 2)The same equation and assumptions hold for simple pression. 該假定和方程也同樣適用于簡單壓縮的情況 3)The total mass of the beam is pl, where p is the mass per unit length.梁的全部質(zhì)量是pl, 其中p 是單位長度的質(zhì)量。2.被動語態(tài)多 1) This problem can also be solved using the vector method. 這個問題也可利用矢量法求解 2) Here a tension load F is applied through pins at the ends of the bar. 此時,拉伸載荷F是通過桿件兩端的銷子施加的3. 省略表達多 1) use of the equation τ=f/a for a body, say a bolt ,in shear assumes a uniform stress distribution too.公式τ=f/a 應(yīng)用于承受剪切應(yīng)力的物體(如螺栓)時,同樣假定應(yīng)力是均布的τ=f/a讀:τ equal to F divided A2) In the above equation positive stresses indicate tension and negative stresses pression 上述各個公式中,正應(yīng)力表示拉應(yīng)力,負應(yīng)力表示壓應(yīng)力 省略了 indicate 和狀語 in the above equation 4. 復(fù)雜長句多 Unit 4 NC and CNC一、 New words: The history of NC and CNC developmentNC = Numerical control數(shù)字控制CNC = Computer Numerical control計算機數(shù)字控制Execute:執(zhí)行Automatically:自動的In sequence:按順序As specified:指定的Contain: 包含Propose:提出 propose to 向……求婚Michigan:密西根州Remend:提出;推薦Thruaxis curve:過軸曲線  thru = through 美式口語Award:授予;給予Contract:契約;合同Speed up:加速Production:產(chǎn)量,生產(chǎn),產(chǎn)品,生產(chǎn)量Commission:委托Massachusetts institute of technology (.)麻省理工學院 Massachusetts:美國馬薩諸塞州Implementation:實施Perforate:打孔Mature:成熟的Powerful:強大的Microprocessors微處理機Supervision:管理;監(jiān)督Punch:達孔Execution:執(zhí)行 The application of NC/CNCIntroduction: 引進Punches: ;沖床Electrical discharge machine = EDM:電火花加工機床 discharge;放電Flame cutter:火焰切割機床;線切割機床Grinder:磨床inspection :檢驗turret:轉(zhuǎn)動架accept:接受magazine::期刊;盒;倉庫swiveled。轉(zhuǎn)動changer:轉(zhuǎn)換器 OD = outside diameter。 outside dimensionTailstock:尾座Interchange:互換Traveling column:可動柱Pallet:托板Index table:索引表Home work:Page 44:Exercises:1. Fill in the blank according to the text.(1) ~ (3)2. Answer the following questions briefly.(1) ~ (2) 3. Say whether the following statements are true (T) or false (F) according to the text.(1)~ (3) the following sentences into Chines. (1) ~ (2) the following phrases into English. (1) ~ (6)二、 Technical ReadingMachines That Mimic Man Man has always used augmenters to increase the powers which nature endowed him. A simple stick, made into a lever to extend his reach and enable him to move heavy objects, may have been his first machine. Slingshots helped him kill food animals that were at greater distances. The wheel eased his movement and his burdens over the ground. But those were simple augmenters for simple tasks. Man has made his world much more plex. With the rapid development of sc
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