RECOL[计] 检索指令语言RECabbr.录制（=record)reciprocity failure倒数率失效recognizing grammar识别文法recarbonation tower再碳酸化塔recuperative system同流换热系统recombination class重组级rectifier voltmeter整流电压表recuperative burner同流换热炉recombinant progeny重组子代recirculating valve再循环阀reconstituted stone再加工宝石