锡矿储藏量不但丰富，而且易于露天开采。

Not only is rich, and tin reserves to open mining.

中国煤储藏量仅次与俄罗斯。

China coal reserves are only next to Russia.

波兰可能拥有西欧最大的页岩气储藏量。

POLAND may have western Europe's largest reserves of shale gas.