bed rock
基岩，岩床，底岩

A narrow bed of rock.
狭窄的岩层

Bed rock is continuous.
基岩是延续不断的。

Rock layer above the ore bed
采矿业中指矿层上的岩层

Steel tube bed rock bench mark
钢管基岩标

Underwater Explosive Compaction of Rock Bed of Gravity Wharf
重力式码头块石基床的水下爆炸夯实技术

Grey Correlation Analysis of Slake Durability of Red Bed Weak Rock
红层软岩崩解性的灰色关联分析

The angle between the horizontal plane and a tilted rock bed or fault.
在水平面与倾斜的岩层或断层之间的角。

Brief Study on the Rock Fragmentation Test Bed of Air Rotary Percussion Drilling
空气冲旋钻井破岩试验台架研制初探旋转钻孔, 钻井机用

A ANALYSIS OF HEAT STORAGE CHARACTERISTIC FOR ROCK BED IN PASSIVE SOLAR GREENHOUSE
温室中岩床蓄热性的分析

Explosive Compaction of Rock Bed Method Applied in Gravity Wharf And Quality Control
块石基床爆夯技术在重力式码头的应用及质量控制

Probing into Increasing Water Volume by Blasting Technology of Pipe Well on Bed Rock
基岩管井爆破增水技术探讨

Using rock bed dismantle tool and expandable casing holder to improve well bore quality
利用岩屑床破坏工具和可膨胀套管扶正器改善井眼质量

A bed or layer of sedimentary rock having approximately the same composition throughout.
地层组成成份大致相同的沉积岩的岩床或岩层。

Analyzing on the elastic wave parameters characteristics of Datong jurassic coal rock bed
大同侏罗纪煤田煤岩层弹性波参数特征浅析

On the dynamic load acting on the bed rock by a trajectory jet and the protection of the bed rock
关于挑跌流对河床的动水压力及基岩的防护问题

Bitumen was distributed on rock bed surface or in rock pores and fractures as laminas and small veins.
沥青呈薄片状或脉状分布在岩石层面、孔隙和裂隙中。

Application of the Multiple Contact Deformeter for Measuring Abutment Rock Bed Deformation at the Jinshuitan Arch Dam
多点变位计在紧水滩拱坝坝肩基岩变形观测中的应用

Analysis of Contrast Experiments on Erosion Stability of Red Bed Soft Rock Slope with and Without Vegetation Protection
植被防护前后红层软岩坡面抗冲性对比试验分析

Discussion on Selection of Types of Quay Structure in Geological Formation with Underlying Rock Bed Embedded in Medium Depth
下卧基岩中等埋深地质条件下码头结构形式选择的探讨

Once upon a time the people thought that the rocks were magma rock and it was impossible to exist boron mine bed underneath of the rocks.
从前人们认为该岩石为岩浆岩, 其下不可能存在硼矿床。