·2,447,543篇论文数据，部分数据来源于NoteExpress
在适形和逆向调强放射治疗中，机械碰撞问题是一个治疗计划的物理可实现性的基本问题。
In a conformal and inverse modulate intensity radiation planning (IMRT), mechanical collision is a key problem, which determines whether the therapy planning can be really executed or not.
曾几何时一切都可管理还是物理上可实现的。
There was once a time when everything that was manageable could also be physically touched.
每当物理学家们揭开大自然的一些新规律，这些知识就可用于制造各种装置，它们实现的功能让人叹为观止——例如，飞机可自由行走于天地间，广播可让千万人足不出户，遍知天下事。
When physicists puzzle out the workings of some new part of nature, that knowledge can be used to build devices that do amazing things — airplanes that fly, radios that reach millions of listeners.
应用推荐