But the dissolving power of rainwater has other, much more dramatic effects underground. 不过在地下 雨水的溶解作用 还能产生其它更壮观的效果 Rivers that flow over limestone often seem to completely disappear. 流经石灰岩的河川 到最后似乎总是无影无踪 When the water reaches the more res...
Rivers that flow over limestone often seem to completely disappear. 流经石灰岩的河川 到最后似乎总是无影无踪 When the water reaches the more resistant bed of limestone 当水流遇到更坚硬的石灰岩床时 its course is altered. 就会改变路线 Once underground, 一旦进入地下 the water takes on a n...
When the water reaches the more resistant bed of limestone 当水流遇到更坚硬的石灰岩床时 its course is altered. 就会改变路线 Once underground, 一旦进入地下 the water takes on a new, more erosive power. 水便有了一股新的、更强的侵蚀力 During its journey from the surface 在地面上流淌时 the w...
its course is altered. 就会改变路线 Once underground, 一旦进入地下 the water takes on a new, more erosive power. 水便有了一股新的、更强的侵蚀力 During its journey from the surface 在地面上流淌时 the water absorbed carbon dioxide from the soil 水从土壤中吸收了二氧化碳 making it mildly a...
are a reminder of this link with the sea. 能说明石灰岩与海洋的关系 Originally, this whole area would have been one solid block of limestone, 起初 这整个地方都是 一整块坚固的石灰岩床 the base of a coral reef. 珊瑚礁的基座 In Borneo, rain has sculptured the limestone into extrem...
Originally, this whole area would have been one solid block of limestone, 起初 这整个地方都是 一整块坚固的石灰岩床 the base of a coral reef. 珊瑚礁的基座 In Borneo, rain has sculptured the limestone into extremely sharp-sided pinnacles. 在婆罗洲 雨水已将石灰岩 雕凿成无比尖削的石塔 But ...
the base of a coral reef. 珊瑚礁的基座 In Borneo, rain has sculptured the limestone into extremely sharp-sided pinnacles. 在婆罗洲 雨水已将石灰岩 雕凿成无比尖削的石塔 But the dissolving power of rainwater has other, much more dramatic effects underground. 不过在地下 雨水的溶解...
In Borneo, rain has sculptured the limestone into extremely sharp-sided pinnacles. 在婆罗洲 雨水已将石灰岩 雕凿成无比尖削的石塔 But the dissolving power of rainwater has other, much more dramatic effects underground. 不过在地下 雨水的溶解作用 还能产生其它更壮观的效果 Rivers that flow ...
so although this rocky escarpment in the United States is now hundreds of metres above sea level 所以 尽管美国境内的这座石壁 如今矗立在海平面以上几百米高的地方 it was actually formed under water. 它实际上却是在水下形成的 The limestone towers of Vietnam's Ha Long Bay 越南下龙湾的石林 ar...
it was actually formed under water. 它实际上却是在水下形成的 The limestone towers of Vietnam's Ha Long Bay 越南下龙湾的石林 are a reminder of this link with the sea. 能说明石灰岩与海洋的关系 Originally, this whole area would have been one solid block of limestone, 起初 ...