low NO低NOx燃烧lowadj.低的；少的；低落的；低声的；卑劣的；低等的adv.低地；低声地；低下地；廉价地n.低水平；低价；低谷v.哞哞叫low-end desk PC低端台式机low carbon olefin低烯烃low-order merge[计] 低阶合并low-noise cable低噪音电缆lowest bid method最低价中标法lowest acceptable最低可接受low alarm setting报警下限low-helix drill平螺旋钻low-grade sugar低级糖low interest rate[法] 低利率