I knew from my own competition days back in Minnesota that it messed with your concentration to hear any music besides the piece you were planning to play.
我自己以前在明尼苏达州参加过竞赛，知道别的任何音乐都会干扰你的注意力，除了你自己将要演奏的曲子。
2
For the preparation and applications of low concentration standard gas , the inside surface of CL2X gas vessel and its piece with coatings were studied.
本研究采用特殊的化学处理方法，研制了新型低浓度标准气体包装容器。
3
We demonstrate a multi-wavelength erbium-doped fiber laser (EDFL) using erbium gain and four-wave mixing (FWM) effect in a piece of erbium-doped fiber (EDF) with high erbium ion concentration.