查询词典 impermeable

Rocky or impermeable sites should be avoided.

多岩石或不易渗透的地区应当避免。

Oil is usually found in porous rock under a layer of impermeable rock which prevents it from escaping.

石油通常存在于多孔性的岩石中，上面覆盖着不可渗透的岩层，使石油不致散失。

The fast cooling packaging is absolutely impermeable to light and oxygen and at the same time ensures a reliably authentic taste.

快速冷却包装是绝对不透水光线和氧气，并同时保证了可靠的真实的味道。

A 10-cm-long impermeable sleeve was used to line the duodenum and upper jejunum of rats.

10厘米长的防渗袖子被用来评估对十二指肠和空肠上的影响。

As another example, the border between deciduous forest and wildflower prairie in the midwest is remarkably impermeable.

还有另一个例子，在中西部地区，落叶林和草原野花之间的边界是无法渗透的，这一点非常明显。

Landfill impermeable liner investment counts more than 30% of total landfill construction investment.

目前我国固体废物的最终处置多采用填埋方式。

Inadequateness leads to thin artificial barrier, which cannot form a low permeable or impermeable artificial barrier, which just cause lower differential pressure, this cannot control the extension on the height effectively.Moreover, because the artificial barrier cannot achieve the function of the height controlled, finally make the projection less efficiency, even could be defeated comes to an end.

过少则人工隔层过薄，不能形成一个低渗透或不渗透的人工遮挡层，只能在裂缝垂直方向上形成较小的压降，从而不能更有效的遏制裂缝在纵向上延伸；另外，由于遮挡层起不到控制缝高的作用，降低了压裂效率，最终施工效果不明显，甚至会以失败告终。

Based on the small steepness parameter, three-layer incompressible, inviscid and irrotational fluid system of arbitrary depth is discussed by using the perturbation method, and a unified theory of nonlinear interfacial-internal wave propagation and the approximate nonlinear evolution equations for interfacial-internal elevations are given on the basis of the rigid upper boundary and the flat impermeable bottom.

基于波陡很小的假设下，利用摄动法，讨论了任意深度的二维不可压缩、无黏性、无旋的三层流体系统，在刚性上边界、平底不可渗透条件下，给出了界面内波传播的统一理论以及描述界面内波波剖面的近似非线性演化方程，最后还讨论了几种特殊情形下的近似非线性演化方程。

Numerous impermeable underground structures exist in urban seepage field. Since the corner of the structure is singular point and the dimension of the structure is negligibly small compared with the whole urban seepage field, it is difficult to model seepage field in urban area with existing methods.

城区渗流场中地下阻水结构物众多，由于结构物角点为奇异点，而且结构物的尺寸跟整个渗流场的尺寸相比起来非常小，这导致现有的计算方法难以对城区渗流场进行模拟分析。

The Dam area is located in Weixi city of YunNan province,whose climate is sub-thermal or the mountain plateau temperate monsoon,the regional water system developed,the exposed strata are mainly limestone、dolomite、schist and phyllite, the aquifer and the Impermeable layers are separated each other.

坝址区位于云南身维西县境内，属亚热-温带季风高原山地天气，区内水系发达，出露的地层主要为泥盆系的灰岩、白云岩及片岩、千枚岩，呈含水层与隔水层互层状构造。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。