Standard addition method and internal standard method
内标标准加入法
standard of aroma type and standard sample
标准和标样
tap to tap time
冶炼时间
冶炼周期
tap to tap time of converter
转炉冶炼周期
Li is an important theory category in Carving the Dragon .There are lots of Li in Carving the Dragon and they are standard of measuring writers and work.The article illumistrates by the way of writers