The machine directs a powerful beam at the affected part of the body.
这种机器将很强的射线对准身体感染部位。
This machine is called manual double-beam crane.
这种机器叫手动双梁起重机。
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。
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。
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