Ray-casting algorithm is that ray passes volume cell of data field, sampling relative pels color to form video image.
光线投影算法将光线穿过数据场中的体元，采样得到相关象素的颜色，形成可视图。
The methodology adopted is to make relative questionnaire from cluster sampling of all 2008 graduates of the medical school.
方法：自行编制研究生满意度调查问卷，对某高校医学院2008届研究生进行整群抽样调查。
But the maximum concentration of propylene during the sampling moment at the polypropylene dust sampling window exceeded 11 times relative standards.
但外操工在聚丙烯粉尘取样口取样瞬间工人操作位空气中丙烯最高浓度超过有关标准的职业接触限值11倍。
The heritability of intramuscular fatty content was 0.24 by using sib-analysis. Meanwhile, we optimized the relative mensuration and sampling methods.
通过全同胞法估测的肌内脂肪遗传力为0.24，同时对肌内脂肪的测定方法和取样方法等进行了改进。
The precision of this method is better than the zone sampling method. The relative standard deviation (RSD) is less than 3 %.
方法的精密度优于区域采样法，相对标准偏差小于3%。
The sampling constants can be estimated by means of sampling relative standard deviation or some relevant chemical and physical informations.
首先对被分析物料实验测定取样标准偏差，或进行一些有关的化学测试和物理测试，以确定取样常数。
Objective: to compare the relative safety of two methods of chorionic villus sampling.
目的：比较两种术式绒毛取材的相对安全性。
This method possessed wide applicability, accurate and exact result and less relative error. Besides, the determined result can not be affected in the weighable range of sampling.
该方法适用范围广，测定结果准确，精密度高，相对误差小，在取样量范围里，测定结果不受取样量多寡的影响。
This method possessed wide applicability, accurate and exact result and less relative error. Besides, the determined result can not be affected in the weighable range of sampling.
该方法适用范围广，测定结果准确，精密度高，相对误差小，在取样量范围里，测定结果不受取样量多寡的影响。
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