relative key相对按钮relativeadj.相对的；比较的；相关的n.亲戚；[语]关系词relative molar free energy相对克分子自由能Relative state measurement相对状态测量relative invariant measure相对不变测度relative resistance change相对电阻变化relative volume percentage相对体积relative cohomology theory相对上同调论relative energy absorption相对剂量吸收relative reproductive rate相对繁殖率relative density of pastes浆体相对密度relative source proportion油源贡献比例