It is introduced that the method of positive amplifying is used to analyse and measure the wave length of the unknown spectral line.
本文介绍了用正片放大法来分析和测量未知谱线的波
OBJECTIVE:To study the mechanism of QingDuYin and YangZhengPian to improve myelosuppression in L7212 leukemia mice.
目的 :探讨清成毒饮和养正片改善L72 12小鼠骨髓抑制的作用机理。
A research on reversible developing of the color positive film;
彩色正片反转冲洗的研究