基本解释汽阀帽英汉例句双语例句Valve body and bonnet are separated by diaphragms in order to prevent valve parts, such as bonnets and steam from corrasion;阀体与盖被中间隔膜隔开，使得隔膜上方的阀盖，阀杆等零件不受介质侵蚀；steam valve bonnet更多例句