Periodic Permanent Magnet什么意思

Parts Per Million百万分之一 Pages Per Minute每分钟页数 Pulses Per Minute每分钟脉冲数 Project Portfolio Management项目管理 Periodic Permanent Magnet周期性永久磁铁 Preproduction Model样机 project procurement manager项目采购经理 Pulse Phase Modulation脉冲相位调制 Pence Per Minute每一便士的硬币 Professional Photographers of Michigan密歇根专业摄影师 People's Progressive Movement人民进步运动 Production or Processing Method (environment)生产、加工方法(环境) Product Process Management产品工艺管理 Pay Per Minute支付每一分钟 Packages Per Minute (packaging machinery specifications)包装,每分钟(包装机械规格)