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...
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many new features.这些最新的机车具有许多新的特色.Steam locomotives pumped out clouds of white smoke.蒸汽机车喷出一团团白烟。Steam locomotives were superseded by diesel.蒸汽机车被内燃机车取代了....
他们围着老师的椅子站成半圆形回答问题。They stood in a semi-circle round the teacher's chair and answered questions.摆成半圆形的椅子a semicircle of chairs这个村庄是由半圆形的茅舍组成的.The village was formed of semicircle huts....