Objective To evaluate the control effects of twelve rich - d - trans allethrin coils and allethrin coils against mosquitoes.目的测试以富右旋反式烯丙菊酯和烯丙菊酯为有效成分不同品种盘香对淡色库蚊的防治效果....
目的: 采用分光光度法,以芦丁为标准品测定异叶青兰中的总黄酮含量.Objective: Flavonoids in Dracocephalum heterophyllum was investigated by spectrometric method with rutin as standard material....
By 1973, this gap had narrowed almost to vanishing point.到1973年，这一差距已缩小到几乎为零。Many of the ranchers themselves see all this tourism as a cheeky attempt to commercialise a real and vanishing culture.在很多农场主看来，这种旅游完全是一种厚颜无耻的行...
She behaves with decorum.她举止端庄有礼.The new King seemed to be carrying out his duties with grace and due decorum.新国王在履行职责时看起来举止得体、端庄稳重。One expects people in the public eye to conduct their personal lives with a certain deco...