B5 chāo
type-B ultrasound
abbr. for B型超聲|B型超声[B xíng chāo shēng]
xíng shēng
ideogram plus phonetic (one of the Six Methods 六書|六书 of forming Chinese characters)
also known as phonogram, phonetic compound or picto-phonetic character
xíng shèng
advantageous
strategic (position)