ground testing facility meaning in English

地面试验设备

So experimental study of dual - mode scramjet engines puts higher demands on simulating capability of ground test facilities and measurement technology , and greatly increases test cost and time
因此，双模态冲压发动机的研究对地面设备的试验能力和测量技术提出了更高的要求，也大幅度地增加了试验的周期和费用。
There are great differences between ground test of a flight vehicle ' s aerodynamics and that of a dual - mode scramjet when ground test facilities are used to do experiments on a dual - mode scramjet engine , the components of incoming flow and its parameters , including total pressure , total temperature ( or total enthalpy ) and velocity must be simulated . at the same time , since the fuel ' s resident time within a combustor is very short , on the order of one millisecond , it is difficult to measure the flow - fields
进行双模态冲压发动机地面试验研究时，必须要求试验设备能模拟实际飞行条件下来流气体的组分、总压、总温(或总焓)以及来流气体的流动速度；同时由于燃料在燃烧室内驻留的时间很短，一般为毫秒量级，从而使流场物理量的测定显得非常困难。