jīng mì
accuracy
exact
precise
refined
jīng mì huà
refinement
to add precision
zhōng guó jīng mì jī xiè jìn chū kǒu gōng sī
China Precision Machinery Import-Export Corporation (CPMIEC)
jīng mì táo cí
fine ceramics (used for dental implants, synthetic bones, electronics, knife blades etc)
advanced ceramics
engineered ceramics