1.
gravelsand filled perforation tunnel
被砾石与地层砂混合物充填的射孔孔道
2.
gravel packed perforation tunne
填满砾石的射孔孔道
3.
outside perforation packing
射孔孔眼外砾石充填
4.
one trip perforating gravel pack system
射孔与砾石充填一次起下作业装置
5.
median pack-to-formaton grainsize ratio
充填砾石与地层砂粒度中值比
6.
double pot gravel pack mixing unit
砾石充填双罐混砂装置
7.
Bored Pile Foundation Reinforcement Technology in Tunnel Silt-filled Caverns
隧道粉砂层充填溶腔钻孔桩地基加固施工技术
8.
The channel is filled with noncompactible sand, or with sand and gravel.
水道内由不可压实的砂或砂砾物质充填。
9.
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
10.
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。
11.
formation-to-gravel size ratio
地层砂与砾石粒度比
12.
gravel fluid mixture
砾石与液体的混合物
13.
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
14.
viscous carrier placed pack
用高粘携砂液作业的砾石充填
15.
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
16.
multiple zone open hole gravel pack
多层裸眼井砾石充填
17.
pack-to-formation median grain size ratio
充填物与地层砂粒度中值比
18.
solidly packed tunnel
充填密实的炮眼孔道