precisionist对语言讲究精确的人precisionn.精确；精密度adj.精确的precision planting精密播种precision-guidedadj.精确制导的precision in a day日内精确度precision analysis精度分析Precision castings精铸件precision leveling精密校平precision leveller精密矫直机precision machinedadj.精密加工的precision question精度问题Precision coupling精密偶件