The ps / 2 mouse and keyboard implement a bidirectional synchronous serial protocol 2鼠標和鍵盤執行一個雙向同步串行協議。
The source and process editor are bidirectionally synchronized while you edit the information 當您編輯信息時, source編輯器和process編輯器是雙向同步的。
Following the development trend of valve cad , according to the requirements of the chengdu chengfeng valve limited company and based on mdt , this article develops the 3d parametric valve design system . the main work and achievements are as follows : based on the 2d engineering drawing of the several different valves the company provided , the 3d parametric basic drawing - base is set up using mdt which is a 3d design platform , including all the parts drawings and the general assemblage drawings of the valve models ; in accordance with the common steps of the valve design , the parameter editors are designed to edit , import and export the valve parameters and are provided with the function of double synchronization on parameters displaying for convenience in use ; in order to meet demands of users and make the design more accurate , reliable and practical , the assistant formula calculators are developed , which can automatically do all types of structure calculation in the procedure of valve design , and export the calculation manual of valve design ; in order to make designers more rivalries , taking full advantage of internetmntranet technology , the virtual design center is developed , which integrate netmeeting , terminal service and super links , so that the designer can directl y use applications on remote server , communicate with other designers on intranet / internet , share software resources and realize long - distance cooperative design 根據閥門cad發展趨勢,針對成都乘風閥門有限責任公司閥門設計現狀,本課題基于mdt三維設計平臺開發了閥門三維參數化設計系統,主要完成的工作和成果如下:根據公司提供的幾種不同結構閥門的二維工程圖紙,利用mdt三維設計平臺建立了三維參數化基本圖形庫,其中包括所有零部件和總裝配模型圖及二維工程圖;依照閥門設計的一般步驟設計了參數編輯器,用來對閥門尺寸參數進行編輯、輸入、輸出等,具有參數雙向同步顯示功能,使用十分靈活方便;根據用戶的需求,為了使設計達到精確、可靠、實用的要求,設計開發了輔助計算器,能自動完成閥門設計過程中所需的各種結構計算,并可以輸出閥門設計計算說明書;為了使設計人員更具有競爭力,本系統利用internet intranet技術設計開發了虛擬設計中心子模塊,虛擬設計中心集成了網絡會議、終端服務、超級鏈接等功能,可以讓設計師直接使用服務器上的應用程序,與intranet internet上的其他設計專家進行交流、共享軟件資源,實現遠程協同設計。