precise surface estimation 表面精确估计
precise spectrum estimation 精确的谱估计
precise and reliable estimation 精确而可靠估计
A more precise estimation method of the Zero Doppler Time has been improved, and the frequency synchronization is achieved.
文章改进了零多普勒时间的估计方法，提高了其估计精度，从而较好地实现了频率同步。
Precise estimation of vertical groundwater recharge is important for reasonable estimation and utilization of groundwater resource.
准确计算地下水的垂向入渗补给量是合理评价和利用地下水资源的基础。
In the X-Ray angiogram, the precise estimation of vascular centerlines and widths is very important for the quantitative and visualized diagnosis of blood vessel disease.
在血管造影图像中，精确估计血管中心线和宽度是血管疾病量化与可视化诊断的先决条件。
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