单位面积埋管长度
tube length per unit area
导尿管长度
length of urinary catheter
电子根管长度测定器
electronically determined length
根管长度
The lengths of root canals
working length
Root canal length
Length of root canal
root canal working length
根管长度测定
root canal length measuring
根管长度测量
measure the root canal length
canal length measurement
根管长度测量仪
electronic root canal length measurement device
electronic apex locator
进气管长度可变技术
variable geometry induction system