窄束，拼音是zhǎi shù，汉语词语，释义是狭隘。
关键词 :半价层 ;能量标定 ;宽束 ;窄束 ; EGS4 [gap=4443]Key words :half value layer ; energy measurement ; broad beam ; narrow beam ; EGS4
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这项技术的原理是将声音压缩成类似于光的窄束。
The technology works by focusing sound into a narrow beam, just like light.
本文对截面为矩形的窄束给出束强分布的图解法证明，并提出计算束强的精确公式。
This paper gives an an illustrational proof to beam intensity distribution for narrow beam of rectangular cross section, and presents an accurate expression to calculating beam intensity.
本论文将窄角扇束扫描看成是多探头的平行束扫描。
This paper regards narrow fan-beam scan mode as multi-detector parallel beam scan mode.
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