man-made相关论文
通过对西安周边地区11个采样点饮用水中砷含量的调查分析，结果表明西安南部秦岭地区和西安东部的饮用水中砷含量较低，西安西部户县地......
以井冈山自然保护区天然林(常绿阔叶林)和人工林(杉木林、厚朴林和毛竹林)中的灌木为研究对象,对其碳密度和重要值进行了对比分析......
摘 要:为了解决刘庄煤矿大断面煤巷复合破碎顶板稳定性难于控制,制约快速掘进,影响安全施工和巷道维护这一重大工程问题,运用FLAC3......
This paper describes the interaction between deep-seated landslides and man-made structures such as dams,penstocks,viadu......
纳米科技的迅速崛起。尽管存在巨大的经济和社会效益。但是和其他科学技术一样。纳米技术也是一把双刃剑。如何利用它有效的一面。......
各项职业教育政策的出台在一定意义上促进了职业教育的发展。但到目前为止,职业教育所取得的成就主要是靠人为因素作用,职业教育作......
生物再生生命保障系统是月球基地、载人登陆火星和火星基地等长时间、远距离的载人航天活动的关键技术之一。梳理了生物再生生命保......
城市绿化在构建城市景观中越来越受到人们的重视,边坡绿化已成为景观构建中必不可少的部分.在昆明这样一个高海拔的山地城市中,地......
这篇文章是对四件附着有硅酸铜钡颜料的中国古代器物的研究。其中三个样品是彩陶颗粒，来自甘肃省张家川马家源遗址，它属于战国晚期（47......
Hong Kong has a high concentration of developments on hilly terrain in close proximity to man-made slopes and natural hi......
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The 25th China International Man-made Fiber Conference (Bengbu 2019)(hereinafter referred to as CIMFC 2019), themed on ......
合成SiC是新型钻研仿制品，其硬度、折光率、色散值、热导系数均与钻研极其相近，用常规钻研检测方法难以鉴定；但合成SiC为非均质体，具较......
The Physico-Chemical Water Quality of the Obafemi Awolowo University Teaching and Research Farm Lake
The physico-chemical water quality of the Obafemi Awolowo University Teaching and Research Farm Lake, Ile-Ife, Nigeria, ......
The early growth of Pinus elliottii is rapid,so how to make Pinus elliottii generate economic benefit as quickly as poss......
Investigation of Fine Velocity Structure of the Basement Layer of the Shallow Crust in Western Yunna
In this paper the authors have discussed the results of investigation of fine velocity structure in the basement layer o......
In most rural settlements in Nigeria, provision of potable water for drinking and domestic purposes is a big challenge;t......
