边界粘土层被科学家用来确定一个灭绝物种衰落的速度。
Boundary clay layers are used by scientists to determine the rate at which an extinct species declined.
这个季节，我们发现的主要是粘土层。
她还发现了已经存在了数百年的粘土层是如何形成的。
She discovered how clay beds, which existed for millions of years, were formed.
她还发现了已经存在了数百万年的粘土层是如何形成的。
She discovered how clay beds, which existed for millions of years, were formed.
卸载前沉降变形纵剖面形状与粉质粘土层顶板面形状非常一致；
The shape of vertical section with settlement deformation is in highly accordance with the shape of top silty clay layer before unloading.
庄园粘土层上的石灰石泥和沙泥土以及心土钢渣形成了很好的排水。
The limestone–and–clay and sand-and-clay soil over a hardpan and iron–dross subsoil allows excellent draining.
广汉亚粘土层的元素地球化学行为表明它是在变干趋势的环境中形成的。
The element geochemistry behavior of Guanghan claypan indicated that it has the dry change tendency in the environment.
这类粘土层妨碍钻井工具的使用，堵塞管柱，这些都会对井队产生严重问题。
This clay fouls drilling tools and plugs piping, both severe problems for drilling crews.
通过对微量元素和稀土元素的研究，可以得出广汉粘土层的形成具有同源成分特征。
Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic.
柳州市广泛分布的红粘土及次生红粘土层强度普遍较高，但具有弱-中等的胀缩性。
The red clay and secondary red clay widely distributed in Liuzhou City have low-middle swell shrinking property as well as more higher strength.
然后用紫外线通过露光模板的光孔照射到印刷台的粘土层，以此塑造出需要的模型图案。
This layer is exposed to ultraviolet light through a mask that represents the required pattern.
研究表明，覆盖粘土层、岩溶及人工疏降地下水，是该地区岩溶塌陷形成的基本条件。
The research shows that the induced factors of karst collapse are the clay cap beds, the karst cave and the pumping of the groundwater in the area.
实践表明：强夯置换法对含石填土层，淤泥质粘土层是一种经济有效的地基加固方法。
The practice has proofed it is a kind of effective and economic way to reinforce the groundsill of combined backfill stone layer with silt and clay.
针对某合同段，取土场地面存在高液限粘土层，用NCS固化剂进行处理的施工技术。
There is high water-level clay layer in BEIJING- SHANGHAI EXPEDSSWAY, the paper introduces construction technology of treating it with NCS curing agent.
不整合附近的岩层在纵向上呈层分布：从下至上依次为半风化岩石、风化粘土层和底砾岩。
Vertically, rocks near the unconformity appear layers which are in turn semi-weathering rock, weathering clay bed and basal conglomerate.
该区内梅山组泥质岩和晚上新世-第四纪沉积的质纯泥质岩、粘土层为盆地两套区域盖层。
The shale in Meishan formation and the pure shale and argillic horizon of Late Pliocene-Quaternary are the two sets of caprock in the area.
石制品八件，发现于陕西乾县大北沟黄土之下砂砾粘土层中，和更新世晚期的哺乳类化石伴存。
Several stone artifacts and some mammalian fossils were recovered in 1963 in the sandy gravels under the Malan Loess at Dabeigou. Qianxian in Shaanxi.
煤料和石灰石存放场必须有底部防渗系统。该系统可由粘土层、地质处理用膜层、或其他防渗材料组成。
The coal and limestone storage yard must have a bottom impermeabilization system. This system may be constituted by a clay layer, a geomembrane layer, or other impervious material.
铀矿化带出现在粗粒砂岩内，其介于粘土层之间，位于网状河道体系内，具有明显的板状和卷状矿床特征。
Uranium mineralisation occurs in coarse sandstones between clay horizons within a braided channel system with apparent tabular and roll front deposit characteristics.
通过对淤泥质粘土层地基两种处理方案的效果的比较，提出针对淤泥质粘土层地基进行处理的较理想方案。
By comparing the reinforce effects of two methods, this paper suggests an ideal mud clay ground reinforce method.
本文对立井冻结段深厚表土层施工技术措施作了简要介绍，对立井深厚粘土层施工中出现问题进行分析探讨。
This paper introduced the technology and measures of shaft construction in thick clay strata, and analyzed the encountered problems.
综合大量事实，本文指出表土深部的厚粘土层存在着地压高、不冻结、塑性变形显著、摩擦阻力大等工程特性。
A great deal of evidence has indicated that deep-thick bedded clay has engineering properties which are high earth pressure, non-frozen, distinct plastic deformation, great lateral resistance.
研究结果表明在红粘土岩层中或老黄土层中处置高放废物，比国外正在研究的深岩层和粘土层处置具有较大优越性。
The results showed that disposal of HLRW in the red clay rock or old loess formation would be more safe than in deep hard rock formation or clay formation that is being studied in other countries.
本工艺标准适用于工业和民用建筑中粘土、粉质粘土及含少量砂、石粘土层，且地下水位低的人工成孔灌注桩工程。
This technology is applicable to industrial and civil construction clay, silty clay and containing a small amount of sand, stone clay, and low groundwater levels Artificial hole pile works.
加利福尼亚的雨季期间发生了山崩，归因于不稳定的粘土层，在洛杉矶旁边的加利福尼亚凡吐拉市发生的最近这次滑坡并没有归咎于降雨。
Where landslips occur in California during the rainy season, due to slippery clay soil layers, this latest slip in Ventura, California near la was not blamed on the rain.
前言：浙江萧山—余杭地区全新统下部粉细砂、淤泥质粘土层有机质丰富，是重要的“生气层系”，所夹的贝壳层和砂层是主要的“储气层”。
The Lower Holocene in the Xiaoshan-Yuhang area, Zhejiang, is composed of fine sand, silt and clay beds. They are rich in organic matter and constitute an important "gas source formation".
前言：浙江萧山—余杭地区全新统下部粉细砂、淤泥质粘土层有机质丰富，是重要的“生气层系”，所夹的贝壳层和砂层是主要的“储气层”。
The Lower Holocene in the Xiaoshan-Yuhang area, Zhejiang, is composed of fine sand, silt and clay beds. They are rich in organic matter and constitute an important "gas source formation".
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