The ejected mass then probably becomes the observed material of a supernova outburst.在这种情况下,抛射物质可能就成为一次超能量爆发中的观测对象.These sources are generally viewed in projection against radio nebulae representing the remnants of super...
利奇先生休假了，不方便作出评论。Mr Leach is on holiday and was not available for comment.这艘船的甲板布局合理，使得所有操控都很方便。This boat has a good deck layout making everything easy to operate.她总是在为她不方便外出的祖母跑前跑后。She was forever running errands for her...
硅酮隆胸植入物a silicone breast implant一种叫作吡啶酮的新型抗艾滋病药物能促使艾滋病毒变异，使其不能繁殖，也不会再感染新的细胞。A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.所有的主要难点都涌现在烯酮 ( 1 ) 的合成中....