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- strong permeable sandy gravel formation 强透水砂卵石地层
- sandy gravel formation 砂卵石地层
- This sewage pipeline uses HDPE double-wall corrugated pipe, sandy gravel stratum foundation and U-type rubber washer joint. 该污水管采用HDPE双壁波纹管,砂砾垫层基础,U型橡胶圈接口。
- Therefore a PDC bit with new compound cutting structure is developed in the light of the characteristics of gravel formation and soft-hard interbedded formation. 鉴于此,针对含有砾石和软硬交错地层的特点,提出了混合切削结构设计,并制造了新型PDC钻头,在含砾石的地层和软硬交错地层中取得了较好的使用效果。
- In the profile,the strata can be divided from the bottom upwards into fluvial sandy gravel,horizontally vermiculated ferruginous red soil,vertically vermiculated red soil,red clay and eolian Xiashu loess,3.3m,4.5m,5.9m,3.6m and 4?1m thick respectively. 该剖面地层自下而上可分为河流相冲积砂砾石、以发育水平状网纹为特征的铁质网纹红土、以垂向网纹为特征的网纹红土、红色粘土和风成下蜀黄土，分别厚3.;3、4
- The new coring tool that made of glass fiber reinforced plastic is used to improve the coring recovery and integrity in the loose gravel formation in Liaohe Oilfield. 玻璃钢取心工具是专为提高辽河油田含砾石松散地层取心收获率和岩心完整性而研制的。
- Through grouting practice of design and construction,it is proved feasible and cheaper to use dam heavy curtain grouting technology for leakproof and bracing for foundation pit in the sandy gravel stratum. 通过一灌浆工程设计和施工实践，说明了在含水量高补给充分的砂砾卵石层中运用大坝帷幕灌浆技术进行基坑止水和支护的可行性和经济性。
- A view of design of sandy gravel filter 砂砾料反滤设计述评
- Natural sandy gravel used in artificial foundation 浅谈天然砂砾石在人工地基中的应用
- sandy gravel layer on the riverbed 河床覆盖层
- Practice of Retailing Backwall Refilled with Natural Sandy Gravel 用天然砂砾进行台背回填的实践
- STUDY ON BALL CARBIDE BIT IN DRILLING GRAVEL FORMATION 球状合金钻头在卵砾石层钻进中的应用研究
- I prefer a sandy beach to a shingly one. 我喜欢沙滩，不喜欢遍布小圆石的海滩。
- Experimental study on liquefaction characteristics of saturated sandy gravel 饱和砂砾料液化特性的试验研究
- My father scratched gravel for Shanghai last night. 我父亲昨晚匆匆忙忙去了上海。
- The road is covered with gravel. 这路用砾石铺成。
- Mr. Sandy decide to postpone deliver a lecture. 桑德斯先生决定延期演讲。
- We bumped up and down along the gravel path. 我们沿砾石小路颠簸而行。
- I prefer a sandy beach to a shingle one. 我喜欢沙滩，不喜欢遍布小石子的海滩。
- Here the grass ended and there was a loose sandy soil under foot. 这儿草到了尽头，脚下是松软件的沙土。
