The basalts were intruded by numerous silica dykes, some of which terminate in the sedimentary layers.玄武岩被无数的二氧化硅矿脉侵入, 其中一些终止于沉积岩层.The dykes were built as a protection against the sea.建筑堤坝是为了防止海水泛滥.Stocks , dykes etc. ca...
In this way Nebraska has been afforested , and it's green all the year around.现在的内布拉斯加已经普遍造林, 四季常青.More than 170 hectares were afforested, reducing water runoff from the hillsides.超过170公顷的土地已植有林木, 以减少雨水从山坡流下.The sat...
The bulk of the population concentrates in the cities.大部分人口集中在城市里.Marx concentrates on the alienation of labour and emphasizes the invidious aspects.马克思集中论述了劳动的异化,强调它令人厌恶的方面.Especially in dairy production, a judicious us...