clear zone zone

the alternative occurrence of fractured zone and non-fractured zone

trade-wind zone [= zone of trade wind]

zone by zone upgoing

Balloon-dilating

dilating bougie

dilating catheter

dilating nasal speculum

Dilating reaction

dilating urethrotome

dilating vessel

ear dilating bougie

laryngeal dilating catheter

tracheal dilating forceps

urethral dilating sound

uterine irrigating and dilating catheter

Anhui Model of agricultural zone

’S’ zone

“gold triangle” economic zone

Ⅱ zone the digital dorsal aponeurosis defect