频率: frequency; rate指数: index number; index频率指配: frequency a ignment; frequency assignment; frequency designation频率指配表: frequency assignment chart频率指示: frequency indication频率指示计: frequency indicator; indicating frequency meter频率指示器: frequency indicating device; frequency indicator; indicating frequency meter保养率指数: maintainability index电阻率指数: resistivity index概率指数: probability index汇率指数: exchange rate index开工率指数: index numbers of capacity utilization; index of operating rates利润率指数: profitability index热效率指数: thermal efficiency index渗透率指数: permeability exponent; permeability index生产率指数: index of productivity效率指数: efficiency index薪金率指数: salary rate index折射率指数: indeterminate princiiple物理效率指数,身体效率指数: physical efficiency index倒置频率指配: reverse frequency assignment零频率指示器: null-frequency indicator频率指配方案: frequency assignment plan分馏效率指数: index of fractional distillation power港元汇率指数: effective exchange rate index of hong kong dollar