headroom 是什么意思

	n. 【建筑】(门口、水渠等的)净空，净空高度。

	the capacity of a system to reproduce loud sounds without distortion 同义词：dynamic headroom,
	vertical space available to allow easy passage under something 同义词：headway, clearance,

	1.	Low - headroom electric wire rope hoist 2 1 rope reeving 移动式钢丝绳电动葫芦
	2.	There is not enough headroom for buses to go under this bridge 这座桥梁下面的净空高度不够,公共汽车不能通行
	3.	No goods vehicles restricted headroom 禁止货车驶入
	4.	There is not enough headroom for buses to go under this bridge 这座桥梁下面的净空高度不够,公共汽车不能通行
	5.	37 . restricted headroom ahead 37 .前面有高度限制
	6.	Hx headroom extension 动态余量扩展系统
	7.	Standard test method for measuring the headroom of a backpacking or mountaineering tent 测量背包式或登山用帐蓬高度的标准试验方法
	8.	The bridge traverses the two shipping channels leaving a navigation headroom clearance of 47m 该座大桥须跨越两条航道，并与航道保持47米净高的距离。
	9.	A bridge or other structure over a road may restrict the actual headroom available 道路上的架空桥梁或其他架空建筑物，使车辆通行的确实高度受到限制。
	10.	Clearly on the compiler side on ia - 64 we have a lot more headroom than with any other architecture 很明显， ia - 64在编译器方面比任何其它体系结构有更大的发展空间。

headroom是什么意思