您要查找的是不是：
- The Dynamics of Patch Density and Edge Density in Forested Landscape of Shanxi, ChinaA Case Study in Guandishan Mountain Forest District. 森林景观斑块密度及边缘密度动态研究。
- The patch density of bogs (reservoirs) and greenbelts is greater than that of the others, and that of cropland landscape is the least. 泡沼（水库）和片林斑块密度远大于其它类型的斑块密度，农田景观的斑块密度最小；
- The index of patch density of wetlands of all the types increased, with that of reed swamps ranked first, being 18.507, and that of mudflats second, being 6.879 in 2005. 各湿地类型的斑块密度都出现了不同程度的增大，其中芦苇沼泽和滩涂增大最明显，2005年斑块相对密度分别达18.;507和6
- west region had the highest patch density and the densest habitation area; 西部地区斑块密度最大，居民地最为密集;
- Their marriage has been going through a bad patch. 他们的婚姻正处在困难时期。
- The lorry went into a spin on a patch of ice. 卡车在一片冰地上打滑了。
- Her latest novel isn't a patch on her others. 她这部新小说比以前所写的差得远。
- The boy's trousers need a patch on the knee. 这孩子的裤子膝盖上需要打个补丁。
- He tried to patch up their quarrel. 他试图平息他们之间的争吵。
- She inserted a patch in the sleeve. 她给袖子打了个补丁。
- The child's jeans had a patch at the knee. 这孩子的裤子在膝盖处有一块补钉。
- There was a patch of garden behind the house. 屋後有一小块园地。
- He wears a black patch over his right eye. 他右眼上戴著黑色的眼罩。
- Our firm has just struck a bad patch. 我公司刚遭厄运。
- The gauze patch applied to his wound is dirty. 裹在他伤口上的纱布脏了。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- What they accomplished was not a patch on what they had planned. 他们的成就远不如预期。
- We ran into a patch of thick fog just outside Edinburgh. 我们就在爱丁堡城外遇到了浓雾。
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
