15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材
初中數(shù)字演示電表
直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材
直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材直流/交流電壓、電流,檢流;4-1/2位數(shù)碼管,不小于5cm15002初中數(shù)字演示電表四位半數(shù)顯教學(xué)儀器初中學(xué)物理實驗器材