As important inorganic industrial chemicals, calciumcarbonates have wide USES.
碳酸钙是重要的无机化工原料，有极广泛的用途。
2
We can get calciumcarbonates of different shapes and grain sizes through different techniques.
在不同工艺条件下可制得不同形态和粒径的碳酸钙产品。
3
Elisabeth Rushworth explains: "We are looking at deposits of calciumcarbonates, from the oldest samples to the youngest, over a period of 300,000 years."