pilot beam
导向射束显示装置 directed beam display device
折射率导向光束 index guide beam
导向射束：可精确定位发射器。
Pilot beam: for precise positioning of the emitter.
youdao
可精确定位发射器：导向射束可精确表明需进行X光检查的区域。
For exact positioning of the emitter: the pilot beam indicates exactly which area will be X-rayed.
应用推荐
模块上移
模块下移
不移动