Great care is required in the selection of clays to be used for making agatewares.
在选择用于制作玛瑙器皿的粘土时，需要格外小心。
This will occur both in sands and clays.
这在砂土地和粘土地带常常发生。
Small seasonal rivers formed beds of natural clays and dried mud.
一些季节性小河流留下了有自然粘土的河床。
The layers at the base of the mountain contain clays and sulfates, both known to form in water.
山峰底部的层叠物中还含有粘土和硫酸盐，这两类物质都是在水的作用下才能形成。
Red or yellow ochre, an iron-containing pigment found in some clays, is ubiquitous at early modern human sites in Africa and the Near East.
红色或黄色赭石——一种在陶土中的含铁矿石，在近东和非洲的史前人类遗址随处可见。
Thus clays and shales tend to be impermeable.
因此粘土和页岩就往往不透水。
Thus clays and shales tend to be impermeable .
因此粘土和页岩就往往不透水。
Natural soft clays often exhibit anisotropic properties.
天然软粘土一般都具有应力各向异性。
Consolidation settlement occurs mainly in clays or silts.
压缩沉降主要出现在粘土或粉沙中。
Kaolin and other kaolinic clays, whether or not calcined.
高岭土及类似土，不论是否煅烧。
Algae removal by clays is a promising approach to treat blooms.
粘土除藻是一种有前景和环境友好的应急除藻技术。
And deep roots helped form sticky clays, which are harder to erode.
这些深深的根系促成了不易腐蚀的黏土的形成。
The pillared clays interlayer is a special site in chemical reaction.
柱撑粘土矿物层间域是一个特殊的化学反应场所。
They also discuss tools, materials, and the properties of polymer clays.
他们还讨论了工具，材料和聚合物粘土的特性。
The mechanism of stabilization of clays by these polymers is also explained.
文章还对该聚合物稳定粘土的机理进行了解释。
The Anasazi culture were also skilled at forming the natural clays into pottery.
阿纳萨奇人还擅长于用粘土制作陶器。
Results from the test indicated a clay substitute was sufficient to control clays welling.
测试结果表明，一种黏土替代物可以有效地抑制黏土膨胀。
Oil muds contain colloidal emulsion droplets, organophilic clays and fatty-acid soap micelles.
油基泥浆包含胶质乳状液滴、亲油基粘土和脂肪酸皂胶粒。
These soils are well developed and contain a subsurface horizon in which clays have accumulated.
发育良好，土表下有一层粘土淀积土层。
The physicochemical conditions for the forming of palygorskite clays were alkaline and reduction.
凹凸棒石粘土形成的物理化学条件为偏碱性的还原条件。
The grapes have been sourced entirely from Tallarook vineyard blocks consisting of gravelly clays.
所用葡萄只产自由砾质土壤的泰拉·洛克葡萄园。
The clays from natural sedimentation have always the structure (fabric and bond) and structure strength.
天然沉积粘土都具有一定的结构性(组构和胶结)和结构强度。
The lateral deformation of the diaphragm wall in clays has been analyzed for braced-cut during excavation.
有针对性地对粘性土中的内支撑挡墙的侧向变形进行了研究。
Results of experiments show that flow in micro-scale pore of saturated clays follows law of nonlinear flow.
实验结果表明饱和粘土微尺度孔隙渗流为非线性流。
The mechanism of flocculation and removal of Microcystis aeruginosa by chitosan-modified clays was studied.
文章探讨了壳聚糖改性粘土絮凝除藻的机理。
Ceramic tiles, used for walls, floors, and countertops, are usually machine-pressed, made of fine clays, and very hard.
陶瓷砖由黏土通过机械压制而成，结实耐用，通常用作墙壁、地板和工作台面结构材料。
The Contents of iron and aluminum oxides in MUfu mountain soil clays were determined by selective dissolution technique.
用化学选择溶提法，测定了幕阜山不同海拔高度土壤及剖面不同层次的粘粒中铁铝氧化物的含量。
For clays, it is common for the hole to slowly enlarge with the passing of time, especially if water-base muds are being used.
而对于粘土，通常的情况是井眼随时间增加而缓慢增大，尤其当使用水基泥浆时。
For clays, it is common for the hole to slowly enlarge with the passing of time, especially if water-base muds are being used.
而对于粘土，通常的情况是井眼随时间增加而缓慢增大，尤其当使用水基泥浆时。
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