The other end is then attached to a radiotherapy machine and radiation is administered, through the tube, directly into the cancer tissue in the rectum.
另一头连接放射线治疗仪，通过管子直接对直肠内的癌组织施用放射线。
CT laser simulation positioning system is a necessary auxiliary device for radiotherapy. Its main purpose is to position patients by simulating different kinds of treatment machine.
CT模拟激光定位系统是放射治疗必不可少的辅助装置，主要是模拟治疗机按不同机型的条件定位。
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