recrnn.改造(休养)RECabbr.录制（=record)recemic-tartaric acid消旋酒石酸Recrealional activities文艺活动reciprocating machinery往复机械recgangular coordinates直角坐标reconfigurable networks可重构网络Reconfiguration process重构过程reciprocating apparatus往复装置recirculafion and reuse回收再利用Recombinant GDH protein重组GDH蛋白reconfigurable terminal可重构终端