| B |
B xíng chāo shēng | type-B ultrasound |
| B |
bī | euphemistic variant of 屄 |
| 型 |
xíng | mold / type / style / model |
| 超 |
chāo | to exceed / to overtake / to surpass / to transcend / to pass / to cross / ultra- / super- |
| 超 |
chāo shēng | ultrasonic / ultrasound |
| 声 |
shēng | sound / voice / tone / noise / reputation / classifier for sounds |