短語詞組短語operation system principle 操作系統(tǒng)原理operation command principle 作戰(zhàn)指揮原則antenna operation principle 天線工作原理And Operation Principle 以及工作原理structure and operation principle 結搆與工作原理structure operation principle 結搆工作原理optimizing operation principle 優(yōu)化運行原則closed loop operation principle 閉環(huán)工作原理operation principle drawings 工作原理圖 返回 operation principle