Two typical spectra which recorded the two characteristic positions of the ring electrode with a He flux of 1,000 sccm are shown in Fig.2.


Two typical spectra which recorded the two characteristic positions of the ring electrode with a He flux of 1,000 sccm are shown in Fig.2.

A.正确

B.错误

正确答案:正确


Tag:生物医学英语写作 时间:2022-02-17 21:14:16