短語(yǔ)詞組短語(yǔ)retrofitting technology 改造技術(shù)numerical retrofitting 數(shù)值改造retrofitting effect 改造效果combustor retrofitting 燃燒室改造burner retrofitting 燃燒器改造retrofitting scheme 改造技術(shù)bridge retrofitting 橋梁翻新site retrofitting 現(xiàn)場(chǎng)改造cnc retrofitting 數(shù)控化改造 返回 retrofitting