recrnn.改造(休养)
RECabbr.录制(=record)
reclamation of material废料利用
recombination structure重组结构
rectification hardening矫正淬火
Rectified brick tar oil精馏砖焦油
reciting but no singing不歌而诵
reconciliatory function和解功能
recalculate before savev.保存前重算
reconfigurable antennas可重构天线
receiving data sequence接收数据序列
reciprocating mechanism曲拐机构