a drain made of porous or perforated piping and placed in a gravel-filled trench, used for subsoil drainage
地面排水沟(用于下层土排水的多孔管道)。
n. 地面排水沟
We come from the land drained by the Yellow River offering genuine friendship and blessings to the miraculous land bisected by the Nile.
n我们从黄河走来,带着东方华夏民族的真情厚意,深深地祝福着尼罗河畔这片神奇的土地。
A lot of these areas get drained and used for agricultural land and farming. Any sort of change in the water-table can really affect them.
很多这些地方被排干用于农业用地和耕作。地下水位的任何变化都会影响它们。
A lot of these areas get drained and used for agricultural land and farming.
很多这些地方被排干用于农业用地和耕作。
The rivers were drained to provide agricultural land.
为了提供农业用地,这些河流被排干水。
A broad area of open land, often high but poorly drained, with patches of heath and peat bogs.
沼泽一片大面积的开阔地,通常很高但排水不好,有成片的荒野和泥炭田。
a drain made of porous or perforated piping and placed in a gravel-filled trench, used for subsoil drainage
地面排水沟(用于下层土排水的多孔管道)。