For the first time in two days, the inlet door closes flush and all vibration is gone.
由于进气口的一个小故障，两天来我们第一次感觉不到机身的震动。
2
With some conventional fuels, deposits may form over time on the back of the inlet valves.
通过一些传统燃料，存款可能会随着时间的推移形成背面的进水阀。
3
Fan coil air outlet and the air return are not at the same level (such as when the outlet for side inlet and outlet for the last time), air inlet and the air return distance can be relatively close.