The machine directs a powerful beam at the infected part of the body.
这种机器将很强的射线对准身体感染部位。
A big part of the problem is knowing just how many people really are infected.
问题的另一个大的方面就是要了解到到底有多少人真正被感染了。
Apicoectomy is the removal of a very small Part of the infected root tip.
齿根尖切除就是要将受到感染的根梢的一个非常小的部分切除掉。
Apicoectomy is the removal of a very small Part of the infected root tip.
齿根尖切除就是要将受到感染的根梢的一个非常小的部分切除掉。
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