精密 jīngmì accuracy
accuracy; exact; precise; refined
How to remember 精密: 精 essence + 密 secret = accuracy.
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How it is used
- High-precision, finely made/measured - 精密仪器 (jīngmì yíqì) precision instruments; 精密计算 precise calculation.
- Technical register; about tight tolerances and exactness in machinery, measurement, planning.
- Distinguish 精确 (jīngquè, accurate/exact of a result): 精密 stresses fineness of the instrument or structure.