所有手提行李都要拍X光片。
For exact positioning of the emitter: the pilot beam indicates exactly which area will be X-rayed.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。
Maybe the doctor was unhappy that the patient would have to wait to be X-rayed, but he gave no sign of it.患者必须等着拍X光片,这令医生不高兴,但他并没有表现出来。