通过砂坝底下建造地下管道或者在沙中开挖蓄水洞，便可以在雨后连续几个月内抽取这些自然净化过的水。
Clean water can be drawn for up to several months after the rains have fallen through pipes underneath the DAMS or by digging a hole in the sand.
自然堆积的灰质鲕粒砂具有40%的孔隙度，因为其颗粒其本上都是球状的。
Oolite lime sand packs naturally with 40 % porosity because the particles are essentially spheroides.
自然堆积的灰质鲕粒砂具有40％的孔隙度，因为其颗粒其本上都是球状的。
Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroides.
不要使用金刚砂局取消您的自然指甲表面的。
Do not use emery board to scrap your natural nail surface at all.
当料浆的自然压力大于塑料管的耐压值后，便可使塑料管破管，从而使生产中断，浪费大量水泥、尾砂，并造成井下污染。
When the pressure is greater than the standard of the plastic pipe, the pipe will break, slurry and cement will escape from the pipe and pollute the mine.
在砂泥岩剖面中，泥岩往往比砂岩具有较高的自然伽马值，从而可以利用自然伽马测井将砂岩储层划分出来。
Based on the features of mudstone with higher gamma ray than sandstone in sandstone -mudstone section, we can distinguish sandstone reservoir from the drilling profiles with gamma ray log.
受到自然界龙卷风抽吸现象的启发，本文探索了空气旋流集中吸送物料的新途径，提出一种新的铸造吸砂装置方案——空气旋流加速器。
Cyclone accelerator is put forward as a new dispenser by means of the exploratory analysis of central cyclone suction, based on the suction phenomenon of tornado.
采用再生技术，一方面我们不需要从自然界开采大量的砂、石、沥青等原材料；
With renewable technologies, on the one hand we do not need a lot of sand, stone, asphalt and other raw materials extraction from nature;
如自然白云石石料，河砂，石英砂，建筑砂，石英石等等。
Such as Natural Dolomite stone, River Sand, Silica Sand, Construction Sand, Quartz stone and much more.
如自然白云石石料，河砂，石英砂，建筑砂，石英石等等。
Such as Natural Dolomite stone, River Sand, Silica Sand, Construction Sand, Quartz stone and much more.
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