Surveyi相关论文
Improving Health Services for Rural Pregnant and Lying-in Women——Achievements in the Reproductive He
FROM 1992 to 1997, the All-China Women’s Federation organized and implemented a reproductive health program for Chines......
We constructed a near-isogenic line of rolled leaf gene Rl(t), which ex-pressed incompletely dominance for the characte......
[Objective]The aim was to provide a scientific basis for the introduction and cultivation of Fructus cannabis by identif......
针对使用较为广泛的美国M-I泥浆公司生产的LEM-Ⅱ钻井液润滑仪使用中存在的问题,剖析了该仪器的测试原理,建立了相关数学模型,确定了该仪器的......
路面结构层厚度检测是道路质量控制的重要工作,传统的钻芯取样法在进行路面厚度检测中存在很多弊端,新型的探地雷达法由于其简便、......
辽宁地质工程职业学院针对高职测绘专业存在的问题,于2016年5月构建并实施了现代学徒制人才培养模式。通过共同探索校企双主体协同......
介绍了一种实用且准确的空间导叶叶片的测绘方法。首先,根据导叶样品,测出导叶的各有关尺寸,作出外形图,然后去除外壳体,再保留一至两枚......
针对井下观测条件恶劣、风大等特点,尝试采用煤炭科学研究总院唐山分院开发的SET—5F防爆全站仪及四站法测量方法,有效提高了井下......