查询词典 perched water

The subsoil must be highly permeable, but it must have a shallow water table or be underlain by an impermeable layer that permits a perched water table to be maintained.

地面一定要相当平整，并且具有小于0.5％的坡度；底土必须是强透水土壤，但是它必须有一个较高的地下水位或在下面铺一个不透水层，以能维持一个较高的地下水位。

For one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water.

在令人忐忑不安的瞬间，盘子晃晃悠悠地上了岸，但它忽然失去了平衡，又跌回水中。

For one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water .

在令人忐忑不安的瞬间，盘子晃晃悠悠地上了岸，但它突然失去了平衡，又跌回水中。

For one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water.

不过，他们终于将链条固定在盘子的一端，一台大功率的绞车开动起来。

For one agonizing moment, the dish was perched precariously on the bank of the canal , but it suddenly overbalanced and slid back into the water

在令人坐卧不安的一瞬间，馅饼盘悬悬乎乎地停在运河岸边，然而它突然失去了平衡，滑回水中。

For one agonizing moment, the dish was perched precariously on the bank of the canal,overbalanced and slid back into the water.

在令人忐忑不安的瞬间，盘子晃晃悠悠地上了岸，但它突然失去了平衡，又跌回水中。

For one agonizing moment,the dish was perched precariously on the bank of the canal,but it suddenly overbalanced and slid back into the water

在令人坐卧不安的一瞬间，馅饼盘悬悬乎乎地停在运河岸上，然而它突然失去了平衡，结果滑回水中。

F or one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water.

在令人忐忑不安的瞬间，盘子晃晃悠悠地上了岸，然而它突然失去了平衡，滑回水中。

Perched aquifers occur in isolation as small quantities of water in suitable confining strata above the water table.

上层滞水含水层以小部分的独立出现在地下水位以上的适当的限制地层。

In the process of excavating the foundation pit and tunnel of the subway, it isdifficult to deal with the perched water, the saturated water in the aquiclude, as wellas the remaining water on the aquifer surface.

在地铁基坑和隧道开挖施工过程中，会经常遇到弱透水性的饱水层，这些地层在开挖后会出现侧壁渗水和在含水层界面形成残留水，会对隧道的整体稳定产生一定的影响。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。