These include protecting natural areas and limiting the amount of chemicals in building materials.
这些措施包括保护自然区，并限制建筑材料中的化学品含量。
The report says China was protecting its domestic manufacturers, by limiting exports of raw materials used in the steel, aluminum and chemical industries.
该报告称，中国通过限制钢铁、铝和化工等行业原材料的出口来保护国内制造商。
Individual transferable quotas — a means of protecting a fishery and the income derived from it by limiting the number of fish caught.
个体可转换定额——意图保护渔场以及限制捕鱼数量的收入所得。
Individual transferable quotas — a means of protecting a fishery and the income derived from it by limiting the number of fish caught.
个体可转换定额——意图保护渔场以及限制捕鱼数量的收入所得。
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