单词	理外的
释义	同Hyperphysical
随便看	periodic maintenance periodic maintenance and repair periodic market system periodic measurement periodic media periodic method by area and volume combined periodic method by volume periodic migration periodic motion periodic noise periodic of half lift periodic operating test of steam turbine periodic operation periodic orbit periodic--orbit periodic order quantity periodic order quantity (poq) periodic oscillation periodic parallelogram periodic paralysis periodic payment accumulating to 1 periodic payment with present value of 1 periodic, periodical periodic, periodical motion periodic, periodical star