The technology was helped by the density of houses and other buildings, made of mud brick so that they showed up somewhat clearly against the looser soil cover.
这种技术利用了显现房屋和其他由泥砖建成的建筑的密度特性，因此可以清晰的显现被松散的泥土覆盖的物体。
2
Early Tuesday morning their work paid off when McDonald spotted the curved timber of the ship poking through the soil and mud.
星期二的凌晨，当麦克唐纳通过土壤和泥浆发现了船浆的弯曲木材的时候，他们的工作才算取得了回报。
3
The team is investigating elements in the mineral calcium carbonate, which were deposited in the mud and soil in and around a lake between two and 1.7 million years ago.