freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

最優(yōu)培訓(xùn)模具的專業(yè)英語(編輯修改稿)

2024-08-28 16:49 本頁面
 

【文章內(nèi)容簡介】 can be retrieved at any time. Unit Five CAD/CAM/CAE ① CAD puter aided drafting means using the puter and peripheral devices to produce the documentation and graphics for the design process. CAD計算機(jī)輔助繪圖是指用計算機(jī)和外部設(shè)備來產(chǎn)生設(shè)計過程的文件和圖樣。 本句為簡單句,主語是 “ CAD puter aided drafting”, 謂語“ means”的賓語是 “ using the puter and peripheral devices to produce the documentation and graphics for the design process”。 ② Integrated circuits on silicon chips allowed full scale puters to be packaged in small consoles no larger than television sets. 硅片上的集成電路使得在控制臺上被組裝起來的大規(guī)模集成計算機(jī)不比電視機(jī)大。 allowed ... to do ...譯為“允許 …… 做 ……” 。 no larger than ...譯為“不比 …… 大,與 …… 大小一樣”。 ③ CAD has been transformed from its status of impractical novelty to its new status as one of the most important inventions to date. CAD已經(jīng)從過去的華而不實(shí)變成如今最重要的發(fā)明之一。 be transformed from ... to ...譯為“由 …… 轉(zhuǎn)變成 ……” 。 Notes: New Words and Expressions : Unit Five CAD/CAM/CAE puter aided drafting計算機(jī)輔助繪圖 peripheral[ p rif r l] ,周邊的 documentation[ d kjumen tei n] graphics[ r fiks] ,圖形 preliminary drawing預(yù)制圖 working drawing工作圖 parts list零件目錄表 design calculation設(shè)計計算 processor[ pr uses] ,處理機(jī) system display系統(tǒng)顯示 keyboard[ ki b d] digitizer[ did itaiz] plotter[ pl t] Unit Five CAD/CAM/CAE broad based industry wide工業(yè)領(lǐng)域 materialize[ m ti ri laiz] graphics display圖形顯示 depict[ di pikt] ,描繪 advent[ dv nt] ,到來 digitizing tablet數(shù)字化板 take shape成形 impractical[ im pr ktik l] novelty[ n v lti] ,新奇 tool design工具設(shè)計 integrated circuit集成電路 Unit Five CAD/CAM/CAE silicon chip硅片 console[ k n s ul] ,控制臺 television set電視機(jī) miniputer[ minik m pju t( r)] 機(jī) microputer[ m ikr uk m pju t( r)] 型(電子)計算機(jī) status[ steit s] ,情形 mainframe system主機(jī)系統(tǒng),大型機(jī) retrieve[ ri tri v] ,恢復(fù) Exercises: Answer the following questions according to the text above. 1. What are the two different interpretations of the term CAD?What is the difference between these two concepts? 2. What are the three basic ponents included in a typical CAD system? 3. What is the hardware ponents included in a typical CAD system? 4. What function does CAD has when moldmaker designs the mold? Unit Five CAD/CAM/CAE Unit Five CAD/CAM/CAE Put the following words into English. 計算機(jī)輔助設(shè)計 外設(shè) 硬件 軟件 用戶 工具設(shè)計領(lǐng)域 集成電路 微機(jī) 小型機(jī) 巨型機(jī) 工業(yè)領(lǐng)域 CAD系統(tǒng) 預(yù)制圖 系統(tǒng)顯示 參考譯文: 計算機(jī)在模具設(shè)計中的應(yīng)用 CAD既可以指計算機(jī)輔助設(shè)計,又可以指計算機(jī)輔助繪圖。事實(shí)上,它可指其中任何 一個也可以是兩個概念都包含。工具設(shè)計者時常在兩個方面都有使用。 CAD計算機(jī)輔助設(shè)計是指用計算機(jī)和外設(shè)使設(shè)計過程簡化和強(qiáng)化。 CAD計算機(jī)輔助 繪圖是指用計算機(jī)和外部設(shè)備來產(chǎn)生設(shè)計過程的文件和圖樣。文件通常包括預(yù)制圖、工作 圖、零件目錄表和設(shè)計計算。 無論是計算機(jī)輔助設(shè)計系統(tǒng)還是計算機(jī)輔助繪圖系統(tǒng), CAD系 都是由三個基本部 分組成 :硬件、軟件、用戶。典型 CAD系統(tǒng)的硬件組成包括處理器、系統(tǒng)顯示、鍵盤、 譯 Unit Five CAD/CAM/CAE Unit Five CAD/CAM/CAE 數(shù)字轉(zhuǎn)換器和繪圖機(jī)。 CAD系統(tǒng)的軟件由具有設(shè)計和繪圖功能的程序組成。用戶就是使用硬件 和軟件使設(shè)計過程簡化和強(qiáng)化的工具設(shè)計者。 直到 20世紀(jì) 80年代,在工業(yè)基礎(chǔ)領(lǐng)域大量涌現(xiàn)的 CAD才開始實(shí)用化。然而, CAD并 不是一個新的概念。雖然已經(jīng)過多年改變,約 30年前在 20世紀(jì) 50年代中期 CAD已有雛 形。最早的一些計算機(jī)包括圖形顯示?,F(xiàn)在圖形顯示只是每個CAD系統(tǒng)的一部分。 圖形顯示代表了邁向工具設(shè)計與計算機(jī)真正相結(jié)合的第一步。數(shù)字化繪圖儀代表了相結(jié)合的第二步。在 20世紀(jì) 60年代早期,隨著數(shù)字化板的出現(xiàn),正如今天我們所知的CAD硬件開始成形。計算機(jī)繪圖軟件緊跟硬件的發(fā)展而發(fā)展。 Unit Five CAD/CAM/CAE 早期的 CAD系統(tǒng)巨大、笨重且價格昂貴,以致只有大公司才買得起。 20世紀(jì) 60年代后期, CAD被看成是能引起人的好奇心但華而不實(shí),在工具設(shè)計應(yīng)用中僅有有限的一點(diǎn)作用。然而,到了 20世紀(jì) 70年代,隨著硅片的介入,計算機(jī)開始在工具設(shè)計領(lǐng)域占據(jù)一席之地。 硅片上的集成電路使得在控制臺上被組裝起來的大規(guī)模集成計算機(jī)不比電視機(jī)大。這些小型機(jī)具有大型機(jī)的所有特性,但機(jī)器變小了,而且也便宜得多。一種叫做微機(jī)的更小的計算機(jī)很快隨后出現(xiàn)了。 在 20世紀(jì) 70年代, CAD硬件和軟件技術(shù)得到進(jìn)一步發(fā)展。以至于到 20世紀(jì) 80年代初期, CAD系統(tǒng)的制作和銷售已成工業(yè)增長點(diǎn)。而且, CAD已經(jīng)從 Unit Five CAD/CAM/CAE 過去的華而不實(shí)變成如 今最重要的發(fā)明之一。到1980年,大量的 CAD系統(tǒng)涌現(xiàn),從微機(jī)系統(tǒng)到小型機(jī)和大型機(jī)系統(tǒng),各種尺寸規(guī)格都有。 一旦客戶通過適當(dāng)?shù)慕缑鎻牧慵O(shè)計轉(zhuǎn)到模具制造,模具設(shè)計者就可根據(jù)零件設(shè)計模具。設(shè)計者確定模具的尺寸、活動件是否必要、冷卻線路的布局和澆道口的位置等,這些都跟零件的幾何圖形有關(guān)。模具設(shè)計各方面的內(nèi)容被存儲在電腦中,且隨時都可以調(diào)用。 Passage Three CAD/CAM 3 Computer aided design/ puter aided manufacturing ( CAD/CAM) refers to the integration of puter into the design and production process to improve productivity. The heart of the CAD/CAM system is the design terminal and re lated hardware, such as puter, printer, plotter, paper tape punch, tape reader, and digitizer. CAD/CAM is a unified software system, in which the CAD portion is interfaced inside the puter with the CAM system. Some of software packages are referred to as software modules and can be classified into three categories: operating systems, application programs, and user programs. . Unit Five CAD/CAM/CAE Unit Five CAD/CAM/CAE Operating systems are programs written for a specific puter or a class of puters. The operating systems especially concerned with the input/output( I/O) devices like displays, printers, and paper tape punches. In most cases the operating system is supplied with the puter. Application programs are developed for a special or specific purpose. The first language for specialized application was Automatically Programmed Tools( APT) in 1956. APT was developed to ease the job of NC programmers in developing input to NC machine tools, as illustrated in 3. Unit Five CAD/CAM/CAE User programs in CAD/CAM are highly specialized packages for creating specific outputs. For example, a user program may automatically design a gear after the user inputs certain parameters like the number of teeth, pitch diameter, and so on. Another program may 3 Example of CAD where a lathe tool is called up to show a machining sequence Unit Five CAD/CAM/CAE automatically design a gear after the user inputs certain parameters like the number of teeth, pitch diameter, and so on. Another program may calculate optim
點(diǎn)擊復(fù)制文檔內(nèi)容
環(huán)評公示相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖片鄂ICP備17016276號-1