1.
formation-to-gravel size ratio
地层砂与砾石粒度比
2.
gravel to sand size ratio
砾石-地层砂粒度比
3.
median pack-to-formaton grainsize ratio
充填砾石与地层砂粒度中值比
4.
gravel-to-sand median diameter ratio
砾石-地层砂直径中值比
5.
pack-to-formation median grain size ratio
充填物与地层砂粒度中值比
6.
gravelsand filled perforation tunnel
被砾石与地层砂混合物充填的射孔孔道
7.
Minute rough granules, as of sand or stone.
砂，砂砾，砂粒细小的粗颗粒，如砂和石头粒
8.
High-pressure rotary jet-grouting for anti-seepage in sand-gravel strata
高压旋喷灌浆防渗技术在砂砾石地层中的应用
9.
Study and Test on Engineering Properties of Sand-gravel Cushion;
砂砾石碾压垫层的工程性能试验与研究
10.
Study on the Stress and Stability of the Cemented Sand & Gravel Dam Base on Strength Reduction Method;
基于强度折减的胶结砂砾石坝应力与稳定研究
11.
Relationship Between Dry Density of Sand and Gravel Mixture and Frequency of Rolling
砂砾石混合料干密度与碾压遍数的关系研究
12.
An underground bed or layer of earth, gravel, or porous stone that yields water.
地下蓄水层，砂石含水层含有水的泥、砂砾或多孔石的地下河床或地层
13.
Pebbles and gravel also insulate the soil to keep surface temperatures low and preserve water.
小石头、砂砾层也可用来做隔绝层，以保持水分，降低土壤的温度。
14.
Application of gunite pile technique to layer of coarse and gravelly sand
喷浆桩技术在粗砂砾砂地层中的应用
15.
Reinforcing this layer by grunting mode is introduced.
介绍采用注浆方式来加固砂卵（砾）石层。
16.
Construction Technology of Curtain Grouting of Deep Gravel Layer
深厚砂砾石层防渗帷幕灌浆施工技术
17.
USE ADVANCE ROOFBOLT SHOT CYCLING TECHNIQUE FOR OVERCOMING TECHNICALLY DIFFICULT PROBLEMS OF TUNNEL PORTAL CONSTRUCTION IN SANDY GRAVEL
利用超前锚杆短循环法解决在砂砾石地层中隧洞挂口的技术难题
18.
Study on the Influence of Sand and Gravel Cushion on Seismic Response for the Tall Buildings;
铺设砂砾石垫层对烟囱类高耸结构地震反应影响的研究