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单词 A-scan
释义

Definition of A-scan in English:

A-scan

noun ˈeɪskan
  • A radar or ultrasound scan in which the echo signals are used to generate a linear trace on an oscilloscope screen, the height of a peak being proportional to the strength of the echo; an image obtained by such a scan. Frequently attributive Compare B-scan.

Origin

1940s; earliest use found in British Patents. From A + scan, probably originally with reference to A as the first of a set, although later often reinterpreted as showing the initial letter of amplitude.

 
 

Definition of A-scan in US English:

A-scan

nounˈeɪskan
  • A radar or ultrasound scan in which the echo signals are used to generate a linear trace on an oscilloscope screen, the height of a peak being proportional to the strength of the echo; an image obtained by such a scan. Frequently attributive Compare B-scan.

Origin

1940s; earliest use found in British Patents. From A + scan, probably originally with reference to A as the first of a set, although later often reinterpreted as showing the initial letter of amplitude.

 
 
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更新时间:2024/12/23 14:47:13