lowcaladj.含热值低的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 frequency power supply低频电源low temperature reservoirs低温油藏low head water power plant低水头水电厂low optical power receiver低光功率接收low contrast detectability低对比可检测性low voltage surge arrester低压避雷器low carbon manganese steel低碳锰钢low level of N-nutrition低N素Low Temperature Techniques低温技术low-temperature material低温材料