他们在地下室的同样的测试,看看如何冷空气能渗透到主屋。
They did the same test in the basement to see how cold air could penetrate into the main house.
汽车发动机用的化油器的组成通常包括燃油室、阻风门、怠速量孔、主量孔、空气节流喉管和加速泵。
Carburetors for automobile engines usually contained a storage chamber for liquid fuel, a choke, an idling jet, a main jet, an airflow restriction, and an accelerator pump.
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