27.下列何者不是影響超音波影像側向解析度(lateral resolution)的因子?(A)頻率(frequency)(B)口徑(aperture)(C)與換能器的距離(distance from
問題詳情
27.下列何者不是影響超音波影像側向解析度(lateral resolution)的因子? (A)頻率(frequency) (B)口徑(aperture) (C)與換能器的距離(distance from the transducer) (D)脈衝循環數(number of cycles in the pulse)