天坑如何形成。
Sink holes in Beijing streets after rainstorm.
北京暴风雨过后街道塌陷。
As the water level drops, large sink holes appear along the shores (undermining infrastructures such as roads and Bridges) and farming lands are full of cracks.
当水位下降时，巨大的石岩坑出现在海岸边(破坏像公路和桥梁等基础设施)，农作田变得坑坑洼洼。
The mines that were dug beneath the town are turning the ground into Swiss cheese, as massive sink holes develop throughout the town -- many big enough and deep enough to swallow a man whole.
地底挖矿使地面呈呈“蜂窝乳酪”状，全镇遍布大的灰岩坑，很多较大的坑洞深到足以把整个人吞没。
The black holes sink to the centre of the cluster, where a core that is completely made of up of black holes forms.
黑洞向星团中心沉降，在这个区域，形成了一个完全由黑洞组成的核心。
If the rock is porous — has many small holes in it, like sandstone — water will sink through these holes until it reaches a layer of rock that is not porous.
如果岩石是渗水的——岩石中有许多小孔，比如沙石——水将渗透过这些小孔，直到由不渗透水的岩石构成的那个层面。
Once the impurities in the water or the cleaning solution sink into the holes of the hole plate, the majority can sink at the bottom and stop in order to avoid the secondary pollution.
水或洗涤液中的杂质一旦沉入孔板的孔中，其大部分就会沉入底部并且静止在那里，避免了二次污染。
The line sink drainage element method was proposed to solve the problem that small FEM grid was needed near drainage holes due to the high hydraulic gradient at the cost of time consuming.
为模拟排水效应并解决排水孔附近水头梯度大、有限元网格划分细而显著增加计算量的问题，提出了汇线单元法。
The line sink drainage element method was proposed to solve the problem that small FEM grid was needed near drainage holes due to the high hydraulic gradient at the cost of time consuming.
为模拟排水效应并解决排水孔附近水头梯度大、有限元网格划分细而显著增加计算量的问题，提出了汇线单元法。
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