precision rod精密尺寸的玻璃棒precisionn.精确；精密度adj.精确的precision aircraft control technology飞机精确操纵技术precision fractional horsepower motor精密分马力电机precision-cut liver slice technique精密肝切片技术precision and efficiency of detecting检测精度和效率Precision Control of Carbon Potential碳势的精确控制Precision carving the word-symbol.精密雕刻钢印字片。precision of real arithmetic constants实算术型常数的精度Precision Location and Tracking System精确定位和跟踪系统Precision Distance Measuring Equipment精密测距装备Precision Tube for Automobile Absorber精密汽车减震器用管