Washers shall be color coded at hose nozzle outlets and mounted inside the fume hood and controlled from the exterior with color-coded index handles.是什么意思_Washers shall be color coded at hose nozzle outlets and mounted inside the fume hood and controlled from the exterior with color-coded index handles.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句