Afterchloroform was evaporated , it was used as chelate complex chromatographic stationary phase to purify puerarin extractive.建立了采用配位色谱柱从葛根素浸膏中分离纯化葛根素的方法.The train was stationary for 90 minutes.火车停了 90 分钟。Electrostatics...
People will seize on any opportunity to reduce competition.人们会抓住一切机会减小竞争.Competition between companies is too fierce for self-regulation to work.公司间的竞争过于激烈,自我调节机制已无法发挥作用。The competition has been thrown wide open by the a...