Sonograph
[sɔnәgrɑ:f]
解释:
(noun.) an instrument that uses the differential transmission and reflection of ultrasonic waves in order to provide an image of a bodily organ.
杰拉尔丁校对--From WordNet
[sɔnәgrɑ:f]
(noun.) an instrument that uses the differential transmission and reflection of ultrasonic waves in order to provide an image of a bodily organ.
杰拉尔丁校对--From WordNet