Why has this article, this admission from NASA, emerged at this time?为什么NASA承认(事实)的这篇文章会在这个时候出现 呢 ?Should NASA be split into separate science and astronautics agencies?nasa是否应解体成不同的科学与太空机构?NASA is hedging its bets and ad...
I've been working at NASA, developing hydropowered missile defense systems.我一直在太空总署工作, 研发氢气助推的导弹防御系统.Why has this article, this admission from NASA, emerged at this time?为什么NASA承认(事实)的这篇文章会在这个时候出现 呢 ?Fast enough, NA...
人体的免疫系统是抵御疾病的主要屏障。The immune system is our main defence against disease.这些人造屏障将会确保提供高度的保护。These man-made barriers will ensure a very high degree of protection.燕山是北京的天然屏障.The Yanshan Hills provide a natural defence for Be...
人们成组地生活在由隧道连接的建筑里.The men lived in a group of buildings joined together by tunnels.如图 19-5 所示,单击和拖动操作也是成组选择的基础.The click - and - drag operation is also the basis for group selection.配置索引管理和作业服务器 ( 如果已成组部署 )Configure inde...
"Prices are down 40 per cent since Christmas," he lamented.“圣诞节以来物价降了4成，”他悲叹道。The bank yesterday revealed a 30 per cent nosedive in profits.该银行昨天透露其利润骤降30％。Costs have been cut by 30 to 50 per cent.成本降低了30%到50%。...