要知道所设计的机械是不是运转得好,或者能不能担任所设计的工作,最好的方法‘是试车’把机械实地运行一下。飞机引擎工厂,特别注意试验与检察的工作, 所用的各色复杂仪器,不但是自己厂中的技师所设计,并由其他方面的科学家参加意见,可是单凭仪器,还不能够回答引擎是不是合乎标准的问题的,因而得由试转(test running)来检查。 The best way to know if the machine you are designing is working well or not is to design the job. Aircraft engine factory, with particular attention to the work of testing and prosecution, the use of complex instruments of various colors, not only from their own factory technicians designed by other scientists to join in the comments, but the instrument alone can not answer the engine is not in line with The standard question is therefore checked by test running.