Australia, for one, has the world's biggest reserves, but only three mines.
以澳大利亚为例,该国拥有世界最多的铀储量,但只有三口矿井。
Indeed, three of the four major mine disasters reported this year occurred at state-owned mines.
今年以来报道的四个矿难大事故中就有三个发生在国有煤矿。
Indeed, three of the four major mine disasters reported this year occurred at state-owned mines.
今年以来报道的四个矿难大事故中就有三个发生在国有煤矿。
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