record reference vector

record cross reference

inertial [reference] frame， inertial [reference] system

optical reference filter wavelength standard reference material

long play record {= LP record}

record-to-record travel

record-to-record travel algorithm

(thermo) reference material

137Cs reference inventory

3D forward looking reference map

3D reference system

5 reference

95% reference range

ABC REFERENCE FRAME

absolute cell reference

absolute reference

absolute reference frame

academic reference

acoustic reference