A subterranean flow of briny water could rearrange sand grains or alter surface roughness in a way that darkens its appearance.
地下水流的流动会使得沙粒积累，并使得表面变得粗糙，从而颜色更深。
Bases on the analysis of dead codes appearance, the factors that have effect on the data-flow analysis associated with the dead codes detection are discussed in this paper.
在对无用代码的表现形式进行分析的基础上，对影响无用代码检测所要进行的数据流分析的各种因素进行了讨论。
For DST test data without appearance of radial flow, this approach is also able to provide satis factory formation parameters, so it has great value of practical application.
对于未出现径向流的DST测试资料，该方法也能提供较为满意的地层参数，具有较强的实际应用价值。
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