on-air testing

基本解释

Base on the practical application of the air conditioner performance-testing bench, the flux measurement equation has been deduced;
从焓差法空调器性能测试平台的实际运用出发，推导出了空调器风量测量的方程式；
The testing on air flow dis-charge coefficient was done on a rectangular test piece in a simulatedcombustion chamber flow condition.
试验是在矩形试验件上进行的，模拟了燃烧室流动状态。
Jet-lag trials might involve laboratory simulations, but we also need 'the real thing, ' which means testing pharmacological treatments on long-haul air travel.
时差综合症的试验需要实验室模拟，但是我们也需要“真实的事情”。也就是说我们需要研究昔多芬对于长期空中旅行（的人）的药效。