er4p中文什么意思

小四

例句与用法

1. The er4p has been equalization adjusted to give better bass responce when being driven directly out of a portable player ( no headphone amp )
   Er4p已经通过调节均衡使其在直接用便携设备驱动下，低频上有很好的响应（无耳放参与） 。