Mary sat beside Elaine, who today seemed excitable.玛丽坐在伊莱恩身边，伊莱恩今天似乎有些激动。Elaine Kelly , from event organisers the Sydney Harbour Foreshore Authority, was delighted with the result.悉尼港前滨管理局的咖啡节组织者之一伊莲?凯莉对这一结果很满意.Elaine sh...
Elaine turned and waved her hand lazily and left.伊莱恩转过身，懒懒地挥了一下手就走了。On his arrival, Elaine met him at the bus station.他来时，伊莱恩在汽车站迎接他。He moved back a little and stared steadily at Elaine.他往后退了退，冷静地看着伊莱恩。...
该方法既适于自治系统又适于非自治系统.Above method can be applied to both autonomous system and nonautonomous system.研究具有年龄结构的非自治的SIS模型.In this paper , we study a nonautonomous SIS model with age structure.研究了一类利用线性状态误差反馈控制方法耦合的非自治悬臂振动系统的全...