短語(yǔ)詞組短語(yǔ)main breadth line 舯部最大寬度;船舶最大寬度線(xiàn)main spectral line 主譜線(xiàn);主軸main telephone line 電話(huà)主線(xiàn)main -line railway 干線(xiàn)鐵路electric main connection line 電氣主接線(xiàn)Main Production Line 主要產(chǎn)品;主生產(chǎn)線(xiàn)main lighting line 照明干線(xiàn)main suspension line 主懸索 返回 main line