您要查找的是不是：
- Building and optimizing final netlist ... Found area constraint ratio of 100 (+ 5) on block we, actual ratio is 0. FlipFlop b_0 has been replicated 1 time(s) to handle iob=true attribute. 上面是综合报告中的一段，最后一句是什么意思，另外，我综合后，看结构图中只有两个触化器，但综合报告显示我占用了三个触化器：
- Area constraints are a way of restricting where PAR can place a piece of logic. By reducing the PAR search area for placing logic, PAR performance can be improved. 面积约束可以把逻辑限定在固定区域，这样就减少了布局搜索的空间，如果得当的话，是可以提高PAR性能的。
- He steered into the parking area. 他把车开进了停车区。
- The slum area was sordid and filthy beyond belief. 该贫民区之污秽肮脏简直令人难以置信。
- The flood cut a wide swath in this area. 洪水席卷了这一地区，满目一片疮痍。
- The luminous intensity on unit area. 单位面积上的发光强度。
- White lines divide the playing area into sections. 这些白线把赛区分成各个部分。
- The first chapter delimits her area of research. 第一章阐明了她的研究领域。
- Sorry. I must have got the wrong area code. 对不起，我一定是拔错地区号码了。
- This is the area that attracts the most attention. 这是最受关注的地区。
- The folk song has a good run in this area. 这支民歌在这个地区非常流行。
- Wet weather is a feature of life in this area. 天气潮湿是这个地区生活的一个特色。
- The area is subject to devastating seasonal winds. 这个地区常遭破坏性季风的袭击。
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- How can people make a living in this arid area? 这片不毛之地上的人们怎么谋生呢？
- This area has an acute shortage of water. 这个地方缺水严重。
- Ice-floes are a threat to shipping in the area. 浮冰对这一带的航运是一种威胁。
- I like the house but I'm not sold on the area. 我喜欢这所房子，但相不中这个地区。
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- The white-lipped deer are rare in this area. 白唇鹿在这个地区很罕见。
