precisionn.
英 prɪ'sɪʒ(ə)n | 美 prɪ'sɪʒn
中文n. 精度，[数] 精密度；精确\nadj. 精密的，精确的
精度，[数] 精密度；精确
adj. 精密的，精确的
词根词源
precision (n.)1630s, "a cutting off (mentally), abstraction," from French précision (16c.) and directly from Latin praecisionem (nominative praecisio) "a cutting off," noun of action from past participle stem of praecidere (see precise). Meaning "preciseness" is from 1740.
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