1) pebble
[英]['pebl] [美]['pɛbḷ]
圆砾;小卵石
2) cobble and gravel strata
圆砾卵石层
3) shingle
[英]['ʃɪŋɡl] [美]['ʃɪŋgḷ]
圆卵石;粗砾;木板
4) gravel
[英]['ɡrævl] [美]['grævḷ]
砾石;卵石
5) cobble and gravel
卵砾石
1.
In drilling cobble and gravel formation, diamond enhanced tungsten carbide composite spherical crown button bits without strengthened gage achieve an average drilling rate of 2.
介绍了金刚石—硬质合金复合球齿钻头在内蒙古某地区铀矿床卵砾石层中的生产试验情况。
2.
On the foundation of analyzing cobble and gravel s physics and mechanics characteristics, we took them as foundationpadding layer and applied them in engineering.
在对黑山地区卵砾石的物理力学性质指标进行分析的基础上,将该卵砾石作为地基垫层应用于实际工程之中,并通过载荷试验、动力触探等方法测试该垫层的各项指标。
6) gravel
[英]['ɡrævl] [美]['grævḷ]
卵砾石
1.
Application of diamond enhanced tungsten carbide composite button to gravel formation;
金刚石-硬质合金复合齿钻头在卵砾石地层中的应用
2.
Grain size survey of gravels in the section from Military Museum to Baiduizi for the programming Line No.9 of Beijing Metro
北京地铁九号线(军事博物馆—白碓子段)卵砾石粒径调查研究
3.
When small powered rotary rigs drill in mudstone,shale and big particle gravel with a diameter of 1,500mm for bored piles, the conventional inserted rock screw bits often present themselves slow penetration or even no penetration due to the rig s small power and small WOB.
采用小动力无加压旋挖钻机在粒径较大的卵砾石地层和泥页岩地层中进行 1500mm以上大口径钻孔灌注桩施工,由于钻机动力小且不能加压,用常规嵌岩短螺旋钻头钻进出现进尺慢或不进尺现象。
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