1) gravel and sand mulch
砂石覆盖
1.
In arid/semi-arid regions,gravel and sand mulches can reduce evaporation from soil surface as a traditional mulching technique,create better soil moisture condition for growth of crop.
在干旱半干旱地区,砂石覆盖作为一项传统的覆盖技术,可以明显减少土壤蒸发,为作物生长提供良好的水分条件。
2) sandy gravel overburden layer
砂卵石覆盖层
1.
The cofferdam of power house at Taipingjiang Hydropower Station is built on thickly bedded sandy gravel overburden layer mixed with sandy loam and erratic stone that has unfavorable anti-seepage property.
太平江水电站厂房围堰为深厚砂卵石覆盖层,且夹含砂壤土及漂石,防渗性能极差,在围堰防渗施工前,进行钻孔勘探,探明了防渗轴线的实际地质情况,选择了高压旋喷灌浆为主的防渗方案,并进行高喷灌浆试验,选定合理的施工参数,实现了高喷施工速度快、防渗效果佳的目的,保证了厂房基坑施工的顺利进行。
4) overlying rocks
覆盖岩石
5) gravel mulch
碎石覆盖
1.
Effects of gravel mulch technology on soil erosion resistance and plant growth of river flinty slope;
碎石覆盖对河流硬质护坡土壤抗侵蚀性及植物生长的影响
6) zeolite capping
沸石覆盖
补充资料：砂石
1.砂土和石子。
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