The useful life of the equipment depend mainly on the maintainability.设备的使用寿命主要取决于维修保养条件.With good maintainability, you can achieve the other abilities easily and cost - effectively.拥有好的可维护性, 你就可以更有效简单的拥有其他的能力.All the ch...
多数城市都会产生各种物质混杂的污染物。Most cities generate a complex brew of pollutants.英语 television 是个语源混杂的词,因为 tele 来自希腊文,vision来自拉丁文.The English word " television " is a mongrel because " tele " comes from Greek and " vision " from Lat...