您要查找的是不是：
- 线thread
- X线密度X-ray density
- 在线in-line
- 光密度测定法，X线Densitometry X-ray
- X线密度法roentgen densitometry
- X线密度计roentgen densitometer; X-ray densitometer
- 计算机X线片放射密度法Bone radiography density method with computer- assisted X- my film
- X线密度探头XDP(x-ray density probe)
- 下表中光栅的排列顺序为,首先是曲率,其次是刻线密度。The gratings in the following table are ordered first by curvature and second by groove density.
- X线密度探测器X-ray density probe; XDP
- X线人类学roentgenographic anthropology
- 高线密度high linear density
- 透X线Pass through X - ray
- 电场线密度Density of electric field line
- X线两档Two X-ray energy modes
- 短线密度Short line density
- X线系统X- ray system
- 线密度不匀率denier irregularity
- X线检测X-ray detection
- 声线密度Sound ray density
