紧密土
... tie 连接 tight soil 紧密土 tight structure 紧密结构 ...
有些的沼泽的深度可以达到10米,这个冰川湖最深的地方仍然充满了水,而有坚实泥土的高地则变成小岛。
Open constructions, which offer little resistance to soil penetration, may require more maintenance than tight constructions, which shed dirt.稀疏的织物结构几乎对灰尘没有阻挡作用,在维护方面要比紧密织物结构复杂得多。