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...
She learned sewing, knitting and embroidery.她学了缝纫、编织和刺绣。Her mother had always done all the sewing.所有的针线活一直都是她母亲来做。She sewed the dresses on the sewing machine.她用缝纫机缝制了这些裙子。...
Some scientists relegate parapsychology to the sphere of quackery.一些科学家把灵学归类到骗术范围.Parapsychology is a knowlege studying on various human psychic phenomenon.超心理学是研究心理学领域以外,各种心灵现象的一种学问....
The latest locomotives embody many new features.这些最新的机车具有许多新的特色.Steam locomotives pumped out clouds of white smoke.蒸汽机车喷出一团团白烟。Steam locomotives were superseded by diesel.蒸汽机车被内燃机车取代了....