sector-scan

基本解释

mechanical sector scan transducer
机械扇形(超声)扫描换能器
The Steady Rotating Speed Control for Precision Sector Scan
精密扇形扫描稳速控制
The Effect of Target Angle on Range Estimate Error in Sector Scan TWS Radar
扇形扫描的TWS雷达目标方位角对距离估计误差的影响
In this paper by combining principles of sector scanning Computer Tomography( CT) with the flame radiative transfer equation, the control equation of the radiation intensity which decays with projective paths is deduced.
结合扇形计算机断层成像原理和火焰辐射传递方程，推导出辐射强度随投影路径衰减的控制方程。
The doctors gave him an ultrasonic brain scan.
医生给他做了脑部超声波扫描检查。