They also used ultrasonic scanning to measure the sliding motion of the Achilles tendons of their volunteers as their feet moved up and down.
同样，他们还使用超声扫描，测量这些志愿者样本脚部上下移动之时跟腱的滑动。
The unified mode can be decomposed into strip-map mode, spotlight mode, sliding spotlight mode and beam scanning mode, and each correspondingly has a simplified 2-d data collection equation.
从统一工作模式可以分解出条带扫描模式、聚束模式、滑动聚束模式和光束扫描模式，及其相应的简化二维数据收集方程。
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