1.
gravel-to-sand median diameter ratio
砾石-地层砂直径中值比
2.
median pack-to-formaton grainsize ratio
充填砾石与地层砂粒度中值比
3.
formation-to-gravel size ratio
地层砂与砾石粒度比
4.
gravel to sand size ratio
砾石-地层砂粒度比
5.
The Application and Research of the Large Diameter Air Operated Down Hole Hammer in Guiding-hole for Pile-sinking at the Layer of Gravel and Boulders Mixed Together
大直径风动潜孔锤引孔技术在含漂石砾砂层预制桩施工中的应用与研究
6.
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
7.
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
8.
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
9.
gravelsand filled perforation tunnel
被砾石与地层砂混合物充填的射孔孔道
10.
Successful application of horizontal directional drilling to pipe-laying construction through sand gravel strata
水平定向钻进技术在砂卵砾石层中的成功应用
11.
The gravel traps are about25 cm deep and filled with spherical gravel stones with diameters of between5 and16 mm in diameter.
沙砾缓冲区大约深25厘米，中间填满了直径在5毫米到16毫米之间的圆形砂石。
12.
pack-to-formation median grain size ratio
充填物与地层砂粒度中值比
13.
Theory of Perneation Grouting about Clay-cement Grout and Application of Numerrical Simulation among the Soil Including of Sands and Pebbles
粘土固化浆液渗透注浆理论与数值模拟在砾砂、卵石土层中的应用研究
14.
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
15.
The Applied Research of Seismic Pre-stack Imaging Technique on Medium-deep Glutenite Body
中深层砂砾岩体叠前地震成像技术应用研究
16.
Test Study and Numerical Simulation on Wetting Deformation of Gravel Sand;
砂砾石料浸水变形特性研究及砂砾石坝蓄水变形的数值模拟
17.
Reinforcing this layer by grunting mode is introduced.
介绍采用注浆方式来加固砂卵（砾）石层。
18.
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