電大機(jī)械cadcam期末復(fù)習(xí)試題參考小抄-文庫吧資料
2025-06-11 08:07本頁面
【正文】 tion survey released last year. But, Li added that efforts are still needed to develop more tourism products, improve English services and provide accurate translation of traffic signs and scenic billboards. Zhao Yun, chairwoman of British Chamber of Commerce Southwest China, told China Daily that his colleagues found the policy very convenient. A British client once flew here and stayed for just one day to check her ordered goods, she said. Zhao was born in Shanxi province, but she has lived in Chengdu for more than 10 years. My life was like a running race moving from place to place. I also lived in Beijing and Shanghai before, she said. But Chengdu is a place that you never want to leave once settling down. It is now my second hometown, she said. If the environment is further improved, the city will attract more people to visit and live, with the 72hour visafree policy and pelling conditions in transportation, culture, climate and cuisine, he said. Foreigners also gave positive feedback on the policy. A spokesman from Dell Inc said the pany has a global hub of operation in Chengdu, so the threeday visa has an immediate and positive influence on the pany39。s level of internationalization. The poli cy will also bring direct economic revenue, Li said. Chengdu has many cultural legacies and is also a paradise for panda lovers with the world39。 7233 機(jī)械 CAD/CAM 第 5 頁 共 5 頁 Visafree policy brings Chengdu biz, tourism boost. Making national headlines several times, Chengdu39。 答： CAD/CAM 系統(tǒng)硬件配置大致有 4 類：主機(jī)系統(tǒng)、成套系統(tǒng)、超級微型機(jī) CAD 工作站與個人計算機(jī)CAD 工作站。 創(chuàng)成法是由計算機(jī)軟件系統(tǒng)，根據(jù)輸入的或直接從 cad 系統(tǒng)獲得的零件信息，依靠系統(tǒng)中的工藝數(shù)據(jù)和各種工藝決策自動設(shè)計出工藝規(guī)程。 CAPP 系統(tǒng)與創(chuàng)成式 CAPP 系統(tǒng)的工作原理有何不同？ 答：派生法是以對標(biāo)準(zhǔn)工藝規(guī)程的 檢索和修改為基礎(chǔ)，而標(biāo)準(zhǔn)工藝是由有經(jīng)驗的工藝人員制訂的。 答：數(shù)控機(jī)床具有對加工對象適應(yīng)性強(qiáng)、自動化程度高、加工精度高且加工質(zhì)量穩(wěn)定、生產(chǎn)效率高、易于建立計算機(jī)通訊網(wǎng)絡(luò)等特點(diǎn)。數(shù)據(jù)類型是程序設(shè)計語言確定變量所具有的種類。 答：數(shù)據(jù)是描述客觀事物的數(shù)字、字符 及所有能輸入到計算機(jī)并可被計算機(jī)接受和處理的
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