“九龙沟”是个多义词，它可以指九龙沟（邢台沙河市风景名胜区）, 九龙沟（崇州市风景名胜区）。
本文对门头沟煤矿九龙盆地区人工开采活动调整前后的微震活动的分维结构变化进行了分析。
The fractal dimension of the microseismic activity before and after adjusting the distribution of working face in Jiulongpen region of Mentougou mine is analyzed.
娃娃沟位于九龙县境内，属川西南高植被覆盖山区。
Wawagou valley is located in the southwest mountainous area of Sichuan province, with high vegetation ratio.
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