As the important raw mine or rock material, most of limestone is open - air to mine, and the large quantity ore digging result in the environment to the big influence.
石灰岩作为重要的矿物原料或石料，绝大部分为露天开采，大量的矿石开采给环境造成较大影响。
As the important raw mine or rock material, most of limestone is open - air to mine, and the large quantity ore digging result in the environment to the big influence.
石灰岩作为重要的矿物原料或石料，绝大部分为露天开采，大量的矿石开采给环境造成较大影响。
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