principles of controling 中文意思是什麼
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This paper analysed working principles and controling features of water lifts about the head pressure transition. plc was used to operate controling system so as to work the system well
摘要對水頭差壓力轉換提水裝置的工作原理及控制特點進行了分析，使用可編程式控制制器（ plc ）控制系統運行，使系統很好的工作。 -
Taking the sucessful control experiences in previous cable - stayed bridge construction into consideration, the control principles and methods for gonghe bridge, that is controling the stress of both the top and bottom sides of main beam, regarding the second stretching as the hauling cable force method, are offered, and related construction procedures for all construction stages are designed
在總結前人對斜拉橋施工控制經驗的基礎上，針對公和斜拉橋施工控制提出了相應的控制原則和方法，即以「控制主樑上下緣應力」為主梁內力控制原則，以「二次張拉」為斜拉索索力控制的方法，並根據各施工階段的具體需要設計相應的施工步驟。 -
Abstract : the composing and controling principles of microcontroller control system of computerized subjective refractometer are introduced
文摘:介紹了電腦驗光儀單片機控制系統的組成原理和控制原理。
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