preliminary design stages 中文意思是什麼
preliminary design stages
解釋
初級設計階段- preliminary : adj 1 預備的；初步的，初級的。2 序言性的，緒言的。n 1 〈常 pl 〉初步，開端；預備行為[步驟、措施]...
- design : vt 1 計劃，企圖，立意要…。2 指定，預定；留給，留著。3 設計，草擬，擬定，籌劃；起草，畫草圖，打（...
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Preliminary studies suggest that the mutual relations of the security, economic and risk should be adjusted and made into organic unity during determination of design flood standards for construction, the concepts on the cascade exploitation of the river should be transferred from flood control to flood management, the design flood standards for construction at the initial, middle and later stages of high dam projects should be driven up gradually according to reservoir capacity
初步研究認為，在施工洪水設計標準選擇時，應處理好安全、經濟和風險相互之間的關系，以達到三者有機的統一；在梯級開發河流上應實施從施工洪水控制到施工洪水管理的觀念轉移；高壩大庫工程的初期、中期、後期三個時段的施工洪水設計標準應根據庫容等指標逐步抬高。 -
Cadis / monocal program is developed and used by chengdu aircraft design institute. it is a program used in the stage of aircraft preliminary designing and other degnisn stages. this program can do rapid and effective stress anlysis to the aircraft constructure
Cadis monocal程序是成都飛機設計研究所自主版權的軟體，它是飛機初步設計階段以及其它設計階段，對半硬殼式（或桁梁式）結構進行快速而有效應力分析的一個程序。
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