Based on the experience, the authors set forth a series of practical methods for electroen ˉ cephalograpns verification.本文作者结合多年的实际工作经验, 研究总结出一套实用的脑电图机检定方法,以供参考....

n.调味酱（如蕃茄酱之类）...

catchup的音标：catchup的英式发音音标为：['kætʃəp]catchup的美式发音音标为：['kætʃəp]...