《日本牙科医生相比于内科医生不断增长的需求导致其地理扩散》，丰川木聪、小林泰树，东京大学医学院。
Increasing supply of dentists induces their geographic diffusion in contrast with physicians in Japan.
以Porter先生的说法，如果各企业在地理位置上邻近，那么同行激烈竞争、专业供应商增多及生产网扩散的组合效应会给一个行业带来繁荣。
For Mr Porter, firms' geographical proximity, their close competition with each other and the growth of specialised suppliers and production networks around them make a winning combination.
这种污染物很容易在大范围的地理区域内扩散，保持其毒性，并具有在生物脂肪组织内积累的倾向。
The pollutants disperse easily across wide geographic areas, retain their toxicity, and have a tendency to accumulate in the fatty tissues of organisms.
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