这些层次的数量和范围是定义完善的：我们有四个不同的层次：公司黑盒子、系统黑盒子、系统内的逻辑设计以及物理实现。
The number and scope of the levels are well defined: we have four distinct levels; company black box, system black box, logical design inside the system, physical implementation.
你站在一个透明的盒子里。这个塔有四个突出的这种房间，悬挂在你头顶的悬臂钢梁上。
You’ve stepped into a transparent box, one of four that jut four and a half feet from the tower, hanging from cantilevered steel beams above your head.
扁长的红盒子经过推拉变形，被分为四个不同(但相连)的展厅。
The flat and long red box is pushed-pulled deformed and divided in to 4 different (but connected) rooms.
大约一年之内，科学家将有望发射一个特别的盒子，有四个三角形的帆将从盒子里展开，借着太阳光上升。
About a year from now, scientists will launch a special box, which unfurls four triangular sails and rise on a sunbeam.
大约一年之内，科学家将有望发射一个特别的盒子，有四个三角形的帆将从盒子里展开，借着太阳光上升。
About a year from now, scientists will launch a special box, which unfurls four triangular sails and rise on a sunbeam.
应用推荐