The hydrogeology condition of coalfield has been studied deeply according to the research findings done before and field works, as well as the analysis and rearrangement for the collected data.
在已有的研究成果基础上，借助野外的现场调研及室内资料的分析、整理，深入了解了煤田区的水文地质条什。
2
To improve testing data compression ratios, a test-bit-rearrangement algorithm and an end-flag alternation-run-length code scheme are proposed based on the characteristics of precomputed test sets.