surface drainage

常見例句

Both the surface drainage and subsurface fault-block oil reservoirs in Subei (northern Jiangsu) oilfield are very complicated.
江蘇油田地表水系發(fā)達，地下斷塊油藏錯綜復(fù)雜，屬于典型的斷塊小油氣藏發(fā)育區(qū)。
At present, the technique of coal-bed methane surface mine and gas drainage was mature, so it was feasible for coal-bed methane development and utilization in Sichuan Province.
目前國內(nèi)外煤層氣地面開采技術(shù)、井下瓦斯抽放技術(shù)均已成熟，四川煤層氣開發(fā)利用是可行的。
Subsurface pipe drainage in drought-prone region is superior to surface drainage in draining off water and salt, controlling ground water-level, and increasing crop output, etc.
以明溝排水為對照，論述了內(nèi)陸干旱重鹽堿區(qū)暗管排水在排水排鹽、控制地下水位、提高土壤脫鹽效果及提高作物產(chǎn)量等方面的優(yōu)越性。