借由空桥和两滚子输送机来输送物体，有助于减低人力需求。
An object is conveyed by the hollow bridge and the two roller conveyers, which is beneficial to reducing the manpower requirement.
通过空桥连接第一和第二建筑物，使得物体可在两栋建筑物之间输送。
A first building and a second building are connected by the hollow bridge, and the object can be conveyed between the two buildings.
没有谁能佩得了一千柄宝剑，没有人能走过一座不存在的桥。空杯一单斟满，就不再是‘空’杯了。
One man can't carry 1, 000 swords, nor can you cross a bridge which isn't there, and if you fill an empty cup it won't be empty any more.
穆桥石表示：“这些船回来的时候有一半是空的，所以我们希望利用这一点。”
"The boats are coming back half empty, so we hope to take advantage of that," said Mr Mora.
穆桥石表示：“这些船回来的时候有一半是空的，所以我们希望利用这一点。”
"The boats are coming back half empty, so we hope to take advantage of that," said Mr Mora.
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