短語詞組短語economical k efficiency ratio 鉀經(jīng)濟效率比economical conversion efficiency 經(jīng)濟轉(zhuǎn)化效率k economical use efficiency 鉀素經(jīng)濟利用效率Economical Efficiency Of Scale 規(guī)模經(jīng)濟性technical and economical efficiency 技術經(jīng)濟性military and economical efficiency 軍事經(jīng)濟效益social economical efficiency 社會經(jīng)濟效益military economical efficiency analysis 軍事經(jīng)濟性分析 返回 economical efficiency