But problems related to rising building costs and the availability of labor and materials remain.

报告指出，新房建设活动有所增加。但与不断上涨的建筑成本、以及劳动力和材料的可用性的有关问题仍然存在。

The building with state of the art optical sorters, screening and sizing means less wasted labor and material.

建筑与先进的光学分类、筛选和浆料意味着较少的浪费劳动力和材料。