英 [ˈhedruːm; ˈhedrʊm] 美 [ˈhedruːmˌˈhedrʊm]
n. 净空；净空高度；头上空间
headroom /ˈhɛdˌrʊm/ TEM4
不可数名词 Headroom is the amount of space below a roof or bridge. (屋顶或桥下的)净空
The forecabin, with 6ft headroom, also has plenty of room to stand and get dressed.
有6英尺净空的前舱也有足够大的空间供人站立和穿衣。
the capacity of a system to reproduce loud sounds without distortion
同义词： dynamic headroom
另中一个更主要的特性，是动铁单位的动态余量，或叫做净空高度（Headroom）设计得很年夜，只要把音量开到五分之一，就已充足听了。
... headphone 头戴式耳机 headroom 动态余量，动态范围上限，电平储备 headset 头带式耳机 ...
... head recovery 压头恢复headroom净空间(容器)；净高(指过道) headroom 净空间(容器)；净高(指过道) headset receiver 头戴式接收器，头戴耳机 ...
净空；净空高度；头上空间
There's a lot of headroom for such a small car.
这么小的一辆汽车的头上空间蛮大的。
The forecabin, with 6ft headroom, also has plenty of room to stand and get dressed.
有6英尺净空的前舱也有足够大的空间供人站立和穿衣。
Countries now have some headroom to borrow.
这些国家目前有一些借款的余地。
If you are prepared to sacrifice 3D, then, this provides a lot of interesting developmental headroom.
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Mini tablets might complete a takeover of that category, creating headroom for laptop sales to revive.
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The squared oval design allows for significantly more shoulder and headroom than its competitors.
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