Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26.
各种天然砂，不论是否着色，但第二十六章的含金属矿砂除外。
2
The most common approach to extracting metal-bearing ore from a porphyry copper deposit is by open-pit mining, although such mines also typically include some underground activities.
从斑岩含铜矿床开采含金属的矿石，最主要的方式是露天开采，尽管这种矿床常会伴随一些地下的地质活动。
3
Miners must drop metal tokens bearing their identification Numbers into a wooden box decorated with the colors of the Hungarian flag before gathering in a wooden elevator to take them into the shaft.