A method of predicting the flight outer sound field according to flight accelerate auto-power spectrum by means of reverberant acoustic test,and an example,are given. 给出了一种用遥测数据通过混响室噪声试验识别飞行外声场的方法,并提供了一个实例。
All spaces around the luminaire and between it and the sides of the test box shall be filled with the thermal insulation described in Clause 16.16. 灯具应当装在一个如第16.
An air-enthalpy test box and an heat pump performance test system were used to evaluate the heat transfer performance of a R410A fin-and-tube evaporator under frosting condition. 摘要在焓差实验装置和热泵性能测试系统中，对一台R410A空气源热泵的翅片管式蒸发器在结霜工况下的换热特性进行了试验研究。
In addition, the company possesses the complete check-out facility: two dimension phantom measuring instrument, Rockwell hardness tester, HV, salt-fog test box and torsion tester. 检测设备有二次元影像测量仪、洛氏、维氏硬度计、盐雾试验箱及扭力测试仪等。