The isthmus that connects Central America and South America.(连接中美洲和南美洲的一个地峡。)
The formation of the isthmus had important consequences for global patterns of ocean water flow.(地峡的形成对全球洋流格局产生了重要的影响。)
Environment and health in the central american isthmus;(中美洲地峡环境与卫生；)
The brunt of the russian attack fell at first upon the frontier defences of the finns in the karelian isthmus .(苏联进攻的主力，最先是集中在卡累利阿地峡芬兰的边境防御工事。)
The morphological structure and secrete mode of oviducal glands in isthmus was different with others places in the oviduct.(峡部的输卵管腺与其他部位的输卵管腺在形态结构和分泌方式上明显不同。)
Second, it appears that closely related populations of fishes on both sides of the isthmus are starting to genetically diverge from each other.(其次，地峡两侧紧密相关的鱼类种群似乎开始在基因上彼此分化。)
The reanastomosis of isthmus and isthmus resulted in the highest rate of intrauterine pregnancy.(输卵管峡部吻合后宫内妊娠率最高。)
The isthmus, or pars interarticularis, is a small, thin segment of bone that connects the facet joints at the back of the spine.(峡部或称椎弓峡部，是脊柱背侧连接上下关节突之间的一段小而细的骨段。)
"The Sugar Barons" explains why they migrated to the isthmus.(《糖料巨亨》这本书解释了为什么他们会迁移到地峡。)
Objective: to analyze the clinical significance of modified thyroidectomy by trans-isthmus approach.(目的：探讨经峡部径路行甲状腺手术的临床价值。)
