单词	extinction ratio
释义	extinction ratio 消光系数
随便看	line folding line following system line font line-for-line line for line copy line format line-format data line-format data stream line formation line format item line format page line-format print data file line format print data set line-format print file line format print job line-formula method line frame line freeing circuit line-freqency blanking pulse line frequence line-frequency linefrequency line frequency line frequency allocation line-frequency blanking pulse ysyese ysyf ysyg ysyh ysyj ysyl ysym ysyn ysyq ysys キョウサントウキョウザイキョウザツブツキョウザマシキョウザメキョウシキョウシキョウシキョウシキョウシキコキュウ