权威例句
FM 10-52-1 Chptr 4 Purification OperationsFloor cleaning deviceCleaning and shapingMethod and device for deicing and cleaning of fansCleaning systems devices and processesBactericidal cleaning wipe comprising a biguanide disinfectantInteragency coal cleaning technology developmentHydrogen cleaning of silicon wafers. Investigation of the wafer surface after plasma treatmentAPPARATUS/METHOD FOR IN-PLACE CLEANING OF INDUSTRIAL FURNACE BURNERSMethod for deicing and cleaning of fans