Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.

砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。

Beneath this active layer is a second layer called "permafrost", which is frozen all year around, and is impermeable to water.

在这一活跃层下面，是被称为“多年冻土”的第二层，终年冻结，不透水。

The canoe is made from an impermeable wood.

该独木舟用防水木材制成。

Impermeable rocks are referred to as aquicludes.

不渗透的岩层都称为隔水层。

Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.

不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。

Rocky or impermeable sites should be avoided.

多岩石和不具渗透性的地点应当避免。

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。

Cover work surfaces with disposable impermeable materials.

用一次性防渗透材料覆盖工作台面。

Impermeable soil can also prevent drainage, leading to root damage.

防渗土还可以防止排水，导致根损害。

Thin layers of other impermeable materials are found in nature, too.

在自然界中也发现有其他非渗透性薄层物质。

The measure of impermeable concrete construction is briefly introduced.

简要介绍提高混凝土抗渗性的措施。

Do not cover the mower with impermeable materials - such as plastic sheets.

不要用塑料布等不透水材料覆盖割草机。

It is observed that the crack impermeable model can be used under some condition.

结果表明，裂缝不可渗透的边界模型在一定条件下可以合理使用。

Clothing that is impermeable to water prevents the evaporation of sweat from the skin.

穿着不透水的衣服会阻碍体表汗液的蒸发。

The landfill sits on a natural foundation of London clay which is more or less impermeable.

垃圾掩埋场以伦敦黏土为天然地基，其防渗效果极佳。

It insists that the Chinese walls separating its traders and bankers are always impermeable.

它强调将贸易部与银行部分隔开的职能分隔制度一直是保密性良好的。

The accumulation of oil is governed by lateral changes from permeable to impermeable facies.

石油的储集是受从渗透到不渗透的岩相横向变化控制的。

Finally, the privacy required by the program makes cube an almost solid and impermeable element.

最后，项目所需隐私使方块宅成为几乎如固体的密闭单元。

Shale has a high porosity, but its pores are small and disconnected, so it is relatively impermeable.

页岩有高孔隙度，但其孔隙既小而又不连通，所以它是相对不渗透的。

The gourd has been used as a container since the earliest times, because of its naturally impermeable skin.

该葫芦被用作一个容器，因为最早的时候，由于其自然渗透皮肤。

This employs high-pressure pumps to force the water from brine through a membrane that is impermeable to salt.

这种方法需要用高压泵使海水通过一种不能渗透盐的薄膜，从而淡化海水。

The membrane is impermeable to blood cells and large molecules such as proteins, but small ones can get through it.

血液分子和一些大分子例如，蛋白质，是无法渗透隔膜的，而小分子仍然可以通过。

Impermeable rocks are desirable sealing rocks or cap rocks for reservoirs because hydrocarbons cannot pass through them readily.

不渗透的岩石对于储层是期望的封隔或盖层岩石，因为油气不能轻易透过它们。

Design of impermeable layer is the central issue; construction should guarantee the design requirements with the highest quality.

设计的核心内容是防渗层，对施工的要求是要确保高质量地满足设计要求。

As primary engineering measure, impermeable wall is applied broadly to reinforcing dike in middle-lower reaches of Yangtze River.

防渗墙作为堤防防渗处理的主要工程措施，在长江中下游堤防加固工程中得到了广泛的运用。

An oil field consists of a reservoir in a shape that will trap hydrocarbons and that is covered by an impermeable or sealing rock.

一个油田由形态上会圈闭油气、并被不渗透的或封闭岩石所覆盖的储集层组成。

Yet the methods of culturing and studying human cells have traditionally been carried out in two dimensions on flat impermeable surfaces.

然而传统的人类细胞培养与研究是在不透水的二维平面上进行的。