Workers use the materials on the module to quickly connect the pipes and wires.
工人使用模块上的材料快速连接管道和电线。
Early this month, the Expo site was a huge muddy field filled with workers, cranes, piles of building materials and heaps of construction debris.
本月初,世博会场还是一个巨大的泥泞土地,到处是工人、起重机以及成堆的建筑材料和大量的建筑垃圾。
"These findings are important because they provide concrete evidence that these materials are harmful and protection must be given to workers, " he said.
他提到:“这些发现非常重要,因为它们提供了具体的证据来证明这些材料是有害的,工人必须给予相应的保护措施”。
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