1) ultralow density materials
超低密度材料
3) super high density material
超高密度材料
4) ultra-low density
超低密度
1.
According to the actual problems existed in two-stage cementing operations in low pressure leaking formations of low permeability gas field,using blast furnace slag(BFS),floating beads and combining advantages of universal (drilling) fluid (UF) cementing technique,slag cement slurry with ultra-low density of 1.
本文针对陕甘宁盆地中部低渗透天然气田低压易漏地层二级固井中存在的问题,利用高炉矿渣、漂珠的潜在活性及比重较小的特点,结合多功能钻井液固井技术的优点,用多功能钻井液设计超低密度(120g/cm3~140g/cm3)矿渣水泥浆。
2.
From 1999 to 2002,by combining plot experiments with field demonstration and apllying the research of controling multiple points and multiple factors(sowing time and sowing density),the results show that,if hybrid-rape is early sown with the effective cultivation of ultra-low density,the net profit is 328 715 yuan/hm~2 more than it is late sown with the cultivation of ultra-high density.
通过1999年-2002年田间小区试验与大田示范相结合,并采用多点和多因子(播期、密度)控制研究,试验与示范结果表明:杂交油菜采取早播超低密度高效栽培法比对照超高密度迟播法纯利润多328 715元/hm~2,增值率为708。
3.
A comparative study of sampling media for ultra-low density geochemical investigation was conducted in Jiayin area, a typical forest-swamp landscape area in central Heilongjiang.
黑龙江省中部的嘉荫地区为典型的森林沼泽景观,在该区进行了超低密度地球化学调查采样介质对比研究。
5) wide-spaced
超低密度
1.
In order to quickly get an overview of the mineral potential of the entire eastern Tianshan terrain, a large wide-spaced geochemical survey project was commenced in 1999 in area of .
超低密度地球化学方法经过近10年发展,已经显示它不受地表覆盖物影响,能够快速有效地圈定战略靶区。
2.
In response to the performance of the Global Goochomical Sampling (a subproject of the IGCP Project 259, International Geochemical Mapping), an orientation study was conducted in 1989-1990 to develop an optimum wide-spaced geoehemical sampling approach in Jiangxi Province, Southsart China.
为了响应国际地球化学旗图计划(ICCP259)中的全球地球化学采样子计划的实施,研制超低密度地球化学采样的最佳方法,1989~1990年在江西省开展了一项试点研究。
6) material density
材料密度
1.
It is shown that the mass ratio and material density bo.
利用离散元数学模型来研究颗粒阻尼结构属性的改变对其阻尼减振特性的影响,结果表明,质量比和材料密度都对颗粒阻尼的减振特性有影响。
补充资料:线型低密度聚乙烯/低密度聚乙烯共混物
分子式:
CAS号:
性质:系由线性低密度聚乙烯与低密度聚乙烯组成的共混物,20%的低密度聚乙烯可显著改善线性低密度的加工性能,提高薄膜韧性和透光性,当低密度聚乙烯达50%时,可提高薄膜撕裂强度和断裂伸长率。可通过粒料直接掺混制备。主要用于吹塑农膜、包装膜及挤出包覆电缆。
CAS号:
性质:系由线性低密度聚乙烯与低密度聚乙烯组成的共混物,20%的低密度聚乙烯可显著改善线性低密度的加工性能,提高薄膜韧性和透光性,当低密度聚乙烯达50%时,可提高薄膜撕裂强度和断裂伸长率。可通过粒料直接掺混制备。主要用于吹塑农膜、包装膜及挤出包覆电缆。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条