n.X光线照相术；放射线照相术
Opto-collection system is a core of X-ray Computed Radiography. X光影像仪的光采集系统是X光影像仪的核心。
It is still used for some radiography and as a source of neutrons. 在某些辐射照相术中还在使用镭,作为中子源。
Estimation of right atrial size on plain radiography is fraught with difficulties. 在平片上很难估计右心房的大小。
n.自动射线照相术
