鼻泪管开口破膜术  operation of Hasner valve incision

波导管开闭器  waveguide shutter

充气二极管开关  gas-diode switch

处壁开管柱  wall treated open tubular column

导火管开关  squib switch

动脉导管开放  patent ductus arteriosus

对开管  center split pipe; split duct

对开管打入式取土器  split-tube drive sampler

对开管式取土器  split-tube sampler

多孔层开管柱  porous layer open tubular columns; carbon molecular sieve; Porous _ layer open tubular column; Plot column

二极管开关  diode switch

二极管开光关  diode switch

反向触发双极晶闸管开关  reversely switched dynistor

分开管理  separate management

缸体排气管开关  block stack switch

焊管开裂  cracks on welded pipe

集热管的真空开管装置  vacuum opener for all-glass evacuated collector tubes

脊髓中央管开口  Opening of Central canal of spinal cord

接管开裂  nozzle cracking

晶体管开关  transistor switch