Airplanes have long been designed with seals , drain paths and special moisture-controlling finishes to prevent corrosion from the occasional cockpit spill .
为了防止驾驶舱因时有发生的洒溅而受到侵蚀，飞机上长期以来都设计有密封带、排水装置和特殊的防潮表面。
They believe the ceramic valve produced in dsmaterial will sell well because of its high wear resistance , wear resistance , heat resistance , corrosion resistance , high tightness and long lifetime .
