Reserch on anti-cracking function of big-size gravel;
水泥稳定大粒径砾石的抗裂性能研究
Looks into in the way of the performance on the gravel flexible primary level asphalt pavement route;
砾石柔性基层沥青路面路用性能调查
Uplift of Lüliang Mountains and Evolution of Huanghe River-Evidence from Gravel Beds in Piedmont
从山前砾石看黄河形成与吕梁山隆升
The influence of rock fragments on the characteristics of macropore and water effluent of forest soils in the Liupan Mountains,Northwest China;
六盘山森林土壤的石砾对土壤大孔隙特征及出流速率的影响
The occurrence of plentiful rock fragments embedded in the soil has a very important role in the formation of macropore in the Liupan Mountains of Northwest,China.
六盘山山区土壤中存在大量的石砾,对土壤大孔隙的形成具有重要影响。
ThesePaleolithictoolsareidentifiedin thegraveltooltraditionin SouthChina,anddated to thelatephaseof theEarlyPaleolithicAgeto theMiddlePaleolithicAge.
本文对沅水下游17个地点的旧石器的地理埋藏、自然环境、文化面貌、时代特征进行了分析,并与相邻的澧水文化类群和氵舞水文化类群进行了比较,认为这批旧石器的时代为旧石器时代早期偏晚至旧石器时代中期,属华南砾石石器传统,并指出沅水下游旧石器属于澧水文化类群,兼具澧水、氵舞水两大文化类群之间的某些过渡性特征。
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
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
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
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。
formation-to-gravel size ratio
地层砂与砾石粒度比
gravel fluid mixture
砾石与液体的混合物
gravel-slot combination
砾石与割缝的尺寸组合
rathole gravel slurry
井底口袋内的砾石砂浆
surface gravel pack
地面倾倒式砾石充填
GP shear-out safety joint
砾石充填剪切安全接头
offshore gravel packing operation
海洋油井砾石充填作业
down-ward progression of gravel
砾石逐渐向下充填推进
nondamaging gravel packing fluid
不污染的砾石充填液
gravel to sand size ratio
砾石-地层砂粒度比
gravel-to-sand median diameter ratio
砾石-地层砂直径中值比
gravel flow packed liner completio
循环砾石充填衬管完井
over-the-top gravel packing too
皮碗式砾石充填工具
2-pot gravel compaction ficompaction filter unit
双罐砾石充填过滤装置