1.
ESR Stratigraphically Chronological Study of the Gravel Layer in Yangluo Town,Wuhan City
武汉阳逻砾石层ESR地层年代学研究
2.
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
3.
Experimental Investigation on the Grouting and Analysis on Seepage Calculation in Sand Stratum and Gravel Bed;
砂砾石层灌浆试验研究及渗流计算分析
4.
The Study on the Geologic Specific Property and the Engineering Measures of the Gravel Layers in Area of YaAn;
雅安砾石层工程地质特性及工程措施研究
5.
Model Test on Failure Mechanism of the Surrounding Rock of Oblique Laneway inSeepage Thick Gravel Stratum
渗水厚砾石层斜井巷道围岩破坏机理模型试验
6.
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
7.
Model test on failure mechanism of the surrounding rock of oblique laneway in thick gravel stratum under seepage water
渗水厚砾石层斜井围岩破坏机理模型试验
8.
The origin of the Pleistocene gravel in western Sichuan depression
川西凹陷地区更新统砾石层沉积成因探讨
9.
Heavy mineral characteristics of gravel layers in the Zhoulao Town borehole
周老镇钻孔砾石层重矿物特征及地质意义
10.
formation-to-gravel size ratio
地层砂与砾石粒度比
11.
gravel to sand size ratio
砾石-地层砂粒度比
12.
gravel-to-sand median diameter ratio
砾石-地层砂直径中值比
13.
multiple zone open hole gravel pack
多层裸眼井砾石充填
14.
median pack-to-formaton grainsize ratio
充填砾石与地层砂粒度中值比
15.
packerless single selective gravelpacked completion
无封隔器的单层选择性砾石充填完井
16.
solid gravel seal
密实的砾石充填层间密封
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.
A layer of coarse gravel is often placed around the drain tile.
常常在排水瓦管周围铺一层粗石砾。