目前为止的例子都是使用缺省形状拣选对象：可以假想是一根从观察者眼睛的位置经过鼠标点至无穷远处的射线。
So far the examples have picked objects using the default shape: an imaginary ray going from the viewer's eye position through the mouse pointer into infinity.
各种形状都既可以行进到极远处(射线)或停止在固定的距离上(分段)，你也可以基于一个边界对象做拣选。
Each of these shapes can either go on forever (a ray) or stop after a fixed distance (a segment), you can also pick based on a Bounds object.
这一不寻常的X射线和光发射的组合使它成为一个显著的对象。
The combination of this unusual X-ray and optical emission makes this a remarkable object.
这一不寻常的X射线和光发射的组合使它成为一个显著的对象。
Thecombination of this unusual X-ray and optical emission makes this aremarkable object.
一类不寻常的对象，超亮度X射线源比恒星释放出更多的X射线，但比类星体的少。
An unusual class of objects, ULXs emit more X-rays than stars, but less than quasars.
一个小的，只有十二英里的直径重的对象是这个美丽的X射线星云负责横跨150光年。
A small, dense object only twelve miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years.
针对研究对象，在高度控制系统设计中，引入多目标多约束的随机射线优化方法。
Based on the research object, the random radiation optimization of multitargets and multi-restrictions is introduced into the design of altitude control system.
数值模拟和试验研究表明LTI改进算法是一种有效的射线追踪方法，能追踪回波，适合复杂对象的层析成像。
Numerical simulations and experiments show that improved algorism of LTI is effective to trace rays including back waves and suitable for computerized tomography to complex object.
放射学是利用电离电磁辐射，如X射线视图对象。
Radiography is the use of ionizing electromagnetic radiation such as X-rays to view objects.
每幅图像，结合有趣的事实，棚上的X光检查的对象和X射线的过程本身的光。
Combined with each image are intriguing facts that shed light on both the X-rayed object and the X-ray process itself.
文中的表1包括100个发射线天体，其中的96个是发射线星系；其余的对象有3个行星状星云，1个发射线星。
We find a total of 100 emission-line objects, of which 96 are galaxies, the rest being 3 planetary nebulae and 1 star.
本发明提供即使是低能量的电子射线，也能够均匀地对对象物照射 电子射线的电子射线照射方法和电子射线照射装置。
There are provided an electron beam application method and an electron beam application device capable of uniformly applying electron beams to an object even if the electron beams have a low energy.
射线和平底锅暂停从立方体弯曲剥离，被设计允许许多比较在对象之间2公斤。
The beam and the pans are suspended from Cu-Be flexure-strips, which are designed to allow mass comparison between objects up to 2 kg.
射线和平底锅暂停从立方体弯曲剥离，被设计允许许多比较在对象之间2公斤。
The beam and the pans are suspended from Cu-Be flexure-strips, which are designed to allow mass comparison between objects up to 2 kg.
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