Their approach is to scan every checked-in bag with a bomb detector.
他们的做法是用炸弹探测器扫描每一个办理了登机手续的箱包。
This paper regards narrow fan-beam scan mode as multi-detector parallel beam scan mode.
本论文将窄角扇束扫描看成是多探头的平行束扫描。
The principle of detector is that the A-Scan flaw instrument of USL32 beams the ultrasonic to detect the bar material with the method of pulse echo once.
该系统采用A型超声波探伤仪产生超声波脉冲，采用一次脉冲反射法检测棒材。
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