The time constant and instantaneous efficiency of the feed-tube solar air heater were tested on the solar irradiance. The equation for instantaneous efficiency was obtained at the different flow rate.
在自然辐照条件下测试了内插管式空气集热器的时间常数、瞬态效率，得到了不同流量下的瞬态效率方程。
2
For reasons that doctors are unable to explain, Tic tacs are the only thing she can stomach, meaning she has to get the rest of her sustenance from a specially formulated feed through a tube.