internal external upset drill pipe
external thermal insulation for external wall
External thermal insulation of external wall
External Wall External Insulation
External wall external insulation system
16S-23S rDNA internal transcribed spacer ITS
18O-labeled internal standards
2 types of internal fixation
3D internal force analysis
3D internal force field
a string of internal problems
a wish for internal promotion
ABCD optical system with internal hard-edge aperture
Aberrant Internal carotid artery
Abosorable internal fixation
Absolute Internal Potential Angle
Absorbable internal fixation