The bone density of the mandibular angle and coxofemoral region can be measured with dual-energy X-ray absorptiometer.
可以使用双能 X 射线吸收仪测量下颌角和股骨区的骨密度。
2
The image was taken by the spacecraft's Wide Angle Camera (WAC) on the Mercury Dual Imaging System (MDIS).
这幅图片是由飞船上双成像系统的广角摄像头拍摄。
3
The results show that the factors are the refractive index thick ness layer number of one-dimensional dual photonic crystal polarization and incident Angle of incident ray.