He has recurring flashbacks to the night his friends died.他反复想起朋友们死去的那个夜晚的情形。Gradually, with an intelligent use of flashbacks, Yves' story unravels.通过巧妙运用倒叙手法，伊夫的故事慢慢呈现出来。The events that led up to the murder were sh...
One of the oldest method of salt removal is dialysis.透析是最古老的去盐方法之一.After dialysis and lyophilization , it can be detected by immunological methods.经过透析和冷冻干燥 、 可用免疫学方法测算.The dialysis principle can be used for demineraliza...