In many cases, said COSATU no more than dumping grounds for children.南非总工会说,许多情况下学校“只不过把孩子堆在一起. ”COSATU denounced this as " a declaration of war "南非总工会指责祖马这是在 “ 宣战 ”...
台钳上有刻痕的虎钳牙帮助它紧咬住工件.The scored jaws of a vise help it bite the work.工件已经上了车床.The workpiece is already on the lathe.我们只是用磨床将工件抛光和精加工.We used grinding machines only to smooth and finish a workpiece....
Horsehead Nebula: New stars have already formed inside part of it.马头星云: 新的?星已经在其内部形成了.Directly below Alnitak, a close inspection will reveal the Horsehead Nebula.经过仔细查看就可以发现紧挨着参宿一的下方就是马头星云.Light takes about 1500 years to...