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In this work we study the adsorptions of some small molecules or group on the hydrogenated C(100)-2×1 surface using den......
二十四节气The 24 Solar Terms:立春Spring begins.雨水The rains.惊蛰Insects awaken.春分Vernal Equinox清明Clear and bright.......
一、常用句式: 1 What’swrong with you?你怎么了?...
Influence of sprinkler irrigation droplet diameter, application intensity and specific power on flow
To determine the main parameters of droplet strike damage and avoid flower injury due to the unsuitable practices during......
将钢渣、矿渣、硫铝酸盐水泥熟料、石膏按1:(0.3~1):(0.15~0.5):(0.08~0.15)的质量比进行粉磨、混合、均化,利用其水化反应所得的多元膨胀源制得一种......
为研究地面以上桩自由长度、桩身刚度、桩身微倾斜角度等因素对基桩位移特性的影响,以黏土模拟软弱土层,砂土模拟下卧持力层,自行设计......
结合甬台温铁路太坤山隧道的工程实例,介绍了隧洞穿越浅埋、富水、围岩破碎带的施工技术,阐述了施工中综合运用的截排水、地表注浆、......
从力学分析角度对细微切削中小直径钻头的设计与使用情况进行研究,说明了几何参数及使用方法不当对钻头强度的影响,以保证此类钻头的......