砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。
Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.
它不能通过云母这样的不透水的物质。
It could not pass through material impervious to water such as mica.
鸡蛋的外壳是不透水的，防止胚胎失水。
The outer covering of the egg is waterproofed to prevent the embryo from drying out.
穿着不透水的衣服会阻碍体表汗液的蒸发。
Clothing that is impermeable to water prevents the evaporation of sweat from the skin.
台上有不透水的罩篷。
你并不需要密不透水的外套，但是它需要对水有一定的抗性。
You don't need a waterproof outer layer, but it's good to have a significant degree of water resistance.
建筑里所有的表面都应当用不透水的材料这样可以彻底清洗。
All surfaces inside the building should be of impervious material to permit thorough washing.
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。
Yet the methods of culturing and studying human cells have traditionally been carried out in two dimensions on flat impermeable surfaces.
水可能会在不透水的材料上冷凝并造成割草机的金属部件锈蚀。
Water may condense under impermeable materials and cause corrosion of metal parts of the mower.
然而眼泪这种东西决不能渗入班布尔先生的灵魂，他的心是不透水的。
But tears were not the things to find their way to Mr. Bumble's soul; his heart was waterproof.
用不透气不透水的薄膜材料覆盖在一个框架上形成罩子，罩子下边有密封环，可以阻止热气外泄。
The cover is formed by covering an airtight waterproof film on a frame. The lower edge of the cover is provided with a sealing ring which can prevent the external leakage of hot gas.
今年6月通过研究他找出了2009年亚特兰大特大洪灾、2010年纳什维尔、俄克拉荷马城洪水泛滥的其他元凶——不透水的屋顶、马路、人行道等。
His June 2010 study also blames what he calls' impervious cover '-that is, roofs, streets, and sidewalks -for the disastrous floods in Atlanta in 2009 and Nashville and Oklahoma City in 2010.
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。
Beneath this active layer is a second layer called "permafrost", which is frozen all year around, and is impermeable to water.
当陷阱阀门关闭的时候，植物在阀门周围的特殊角质层上分泌粘液，形成不透水密封垫。
When the trap door shuts, the plant excretes mucilage next to a special cuticle around the door, creating a watertight seal.
一块石墨或是一颗钻石能很悠然自得地躺在实验台上而不会被灼烧成火焰或被锈化，并且由于其不透水性，它是不会和水发生反应的。
A lump of graphite or a diamond will sit happily on a laboratory bench without bursting into flames, or even rusting, and is impervious to the action of water.
鸭子的背部不透水。
经常有积液的地面不透水，并坡向排水系统，其废水纳入生产、检修污水收集系统。
The ground with regular accumulated liquid shall be impermeable and the wastewater of slope direction sewer age system shall be collected by production and repair wastewater gathering system.
以传热学边界层湍流对流换热理论为理论基础，利用实测数据建立城市不透水表面对流换热的数学模型。
Based on the boundary layer turbulence convective heat transfer theory in heat transfer, we establish the mathematical model of convective heat transfer on the urban waterproof surface.
迄今为止，已有大量的文献介绍建立在透水或不透水地基上的土坝渗流计算方法。
Lots of articles have introduced the calculation method of earth dam seepage with pervious ground base or impervious ground base so far.
电缆的一端永久性连接在封闭的水银开关内，这个完整的密封总装形成完全不透水、抗撞击装置。
One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely watertight and impact resistant unit.
现有不考虑土体固结和流变、且简单假定隧道边界透水或不透水情况下的解均为此解的特例。
The available solutions without considering the consolidation and creep of clay, the permeable and impermeable boundary of tunnel are just extreme cases of this paper.
在一些地区，需要改进的空间：先于新建筑的大型停车场，具有不透水性，无灰水系统。
And there is room for improvement in some areas: the Boulder parking lot, which predated the new building, is not permeable. There is no gray water system.
若已知存在不透水层，不透水层内的水压力分布规律如何。
If the water-tight stratum had already existed, what the groundwater pressure distribution regular in it.
鸭子的背部不透水。
鸭子的背部不透水。
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