On this basis, an assessment was made by improved neural network method on some land blocks affected by mining exploitation in Qian 'an City, Hebei and the results accorded with the re...
在此基础上以河北省迁安市部分矿业开发影响的地块为例，采用改进的神经网络方法进行了评价，评价结果符合实际情况。
The existing state of gold mining in Hebei province is described in this paper.
本文论述了河北省黄金矿山采矿的现状。
Hebei natural stone co., LTD is a synthetical stone company which is specialized in mining, processing natural slates, producing, importing and exporting various kinds of cultural stones.
河北本色石材有限公司是集矿山开采、天然板材加工、各种文化石研制、生产及进出口业务于一体的综合型石材企业。
Hebei natural stone co., LTD is a synthetical stone company which is specialized in mining, processing natural slates, producing, importing and exporting various kinds of cultural stones.
河北本色石材有限公司是集矿山开采、天然板材加工、各种文化石研制、生产及进出口业务于一体的综合型石材企业。
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