1.
Characteristics of Quaternary Quartz Gravel in Donghai, Jiangsu and Its Application;
江苏东海地区第四纪石英砾石类型特征及其应用
2.
A rock consisting of pebbles and gravel embedded in cement.
砾岩由水泥固结的卵石和砾石形成的砾岩
3.
Gravel is an unconsolidated mixture of rock fragments or pebbles.
砂砾是砾石岩石碎片或卵石的松散的混合物。
4.
The ribbon stones are consisted of different color pebbles such as agate, chalcedony, jasper and quartzite.
纹石系由五颜六色的玛瑙、玉髓、碧玉、石英岩等卵砾所组成。
5.
An unconsolidated mixture of rock fragments or pebbles.
砾石岩石碎片或卵石的松散的混合物
6.
The thin-beded siliceous-rocks include chert and depositional quartz with textures of oolite and pebble.
矽质岩包括燧石和沈积石英岩，呈薄层状产出，沈积石英岩具鲕状、砾状结构。
7.
Effects of Gravel on Water Retention Capability of Purple Gravelly Soils in a Hilly Area
砾石对丘陵紫色砾质土持水性的影响
8.
Study on Water Retention Capability of Purple Rock Fragment Soils in Hills
丘陵紫色砾质土/砾石土持水性研究
9.
formation-to-gravel size ratio
地层砂与砾石粒度比
10.
gravel fluid mixture
砾石与液体的混合物
11.
gravel-slot combination
砾石与割缝的尺寸组合
12.
rathole gravel slurry
井底口袋内的砾石砂浆
13.
surface gravel pack
地面倾倒式砾石充填
14.
GP shear-out safety joint
砾石充填剪切安全接头
15.
offshore gravel packing operation
海洋油井砾石充填作业
16.
down-ward progression of gravel
砾石逐渐向下充填推进
17.
nondamaging gravel packing fluid
不污染的砾石充填液
18.
gravel to sand size ratio
砾石-地层砂粒度比