例句與造句

1. Article 29 in the exploitation of coal resources , coal mining regulations must be complied with , the rational mining sequence followed and the rate of extraction set for exploiting coal resources achieved
   第二十九條開采煤炭資源必須符合煤礦開采規(guī)程，遵守合理的開采順序，達(dá)到規(guī)定的煤炭資源回采率。
2. It's difficult to find mines regulations in a sentence. 用mines regulations造句挺難的