马褂木是我国南方优良的造林绿化树种,也是山地丘陵地区优先发展的纸浆纤维材和胶合板用材树种。
Liriodendron Chinese is a superior virescence forestation specie, also a paper pulp-making and veneer-making specie in south China.
应用结果表明,改进后的用地评价模型对山地丘陵地区的开发建设具有更强的针对性,提高了评价的合理性。
The application results showed that the optimized model is more pertinent and enhance the rationality of the land use assessment.
为满足我国山地丘陵地区物探爆破孔施工技术的要求,研究适合土层、岩层钻进用的钻机及工具,对钻机的配套设备进行了开发研究。
Drill rig and its accessory tools were developed to meet the technical requirements of drilling Geo physical blast holes in soil and rock among mountainous and hilly area in China.
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