lowsag低弧垂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-income residents低收入阶层Low Precedence Traffic低等级电报low renin hypertension低肾素性高血压low carbon residue oil低焦值油low - frequency mode低频模式low intensity conflictph.low - cost operation低成本营运low-side roller mill低面滚磨机low-heat milk powder低温干燥奶粉low enrichment leacher低加浓燃料浸取器