With up and down heating formed by 750W hot air handle on the top and 1500W preheater under PCB to have overall and even heating to avoid PCB deformation.是什么意思_With up and down heating formed by 750W hot air handle on the top and 1500W preheater under PCB to have overall and even heating to avoid PCB deformation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句