ANCIENT SAND RIDGES  古沙脊

arc-related spreading ocean ridges  早期婴幼儿龋; 亲弧扩张脊

area along radial sand ridges  辐射沙洲沿岸

barkhan ridges  新月形沙丘链

between ridges  垄间

combination sowing on ridges with mulching  垄作覆盖

completely mulched alternating narrow and wide ridges with furrow planting  全膜双垄沟播

Decorative Ridges of Pottery Modellings  陶塑脊饰

DOUBLE RIDGES  双重山脊; 双脊线

double ridges mulched with wide plastic film  全膜双垄沟播; 双垄全膜覆盖沟播栽培技术

double ridges rainwater harvesting  双垄面集雨

double ridges stage  二棱期

double ridges with full film coverage  双垄全膜覆盖

Double-ridges process  双脊线过程

double-ridges waveguide  双脊波导

Entire membrane double ridges trench sowing  全膜双垄沟播

Longitudinal Ridges  纵脊

modern tidal sand ridges  现代潮流沙脊群

Mountain Ridges  山系

multispreding ridges  多扩张中心