近年来，新兴经济体的城市化和工业化促使其水泥需求快速增长：现在它们消费的水泥占全球总产量的90%，而且这个份额似乎仍在增长。
In recent years demand in emerging economies has risen sharply, as they urbanise and industrialise: they now consume 90% of the world's cement output, and this share is likely to keep growing.
国内建筑供应商也增加水泥和钢铁的产量来满足对原料的需求。
Domestic building suppliers are also increasing output of cement and steel to provide needed materials.
随着房屋销售的下滑以及开发商纷纷削减新建项目，建筑用钢材、水泥和铜的需求走软。
As housing sales fall and developers cut back on new projects, demand for the steel, cement and copper that go into new buildings has weakened.
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