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- Relationship between region concentration index and economic performance in Chinese feed industry: an empirical study 中国饲料加工业地区集中度与绩效的实证研究
- region concentration index 地区集中度
- In Sanming and Ningde, the seasonal concentration index (R) was high est, and the lowest R appeared in Xiamen. 三明和宁德的R值（季节集中指数）最高，而厦门R值最低。
- Market shares and the concentration index of HHI are commonly used for measuring the horizontal market power of sellers. 市场份额和集中度指标HHI常用来衡量卖方的横向市场势力。
- In the same study, profits in manufacturing tend to increase with the concentration index indicating that the biggest firms possess sufficient market power to fix prices. 同样的研究指出，制造业的利润伴随着集中化的指标增加，意味着最大的企业拥有充足的市场力量来决定物价。
- Agriculture production was reoriented towards regional concentration, quality improvement and industrialization. 农业生产加快向区域化、优质化、产业化方向发展；
- Agriculture production was reoriented towards regional concentration,quality improvement and industrialization. 农业生产加快向区域化、优质化、产业化方向发展。
- Of these, the most intense rivalries in the second regional concentration points and industries, environmental resources superiority areas. 其中，争夺最为激烈的区域集中在二线关口和产业、环境资源优越的地区。
- comprehensive concentration index 综合集聚指数
- The third-party logistics in china is still in its early development stage, and has a high regional concentration degree, mainly distributing in the regions of YRD and PRD. 目前，中国第三方物流还处于发展初期，而且地域比较集中，主要集中在长江三角洲和珠江三角洲地区。
- fractional inhibitory concentration index 分级抑制浓度指数
- Herfindal - Hirschman concentration index HHCI
- the time-space distribution concentration index 时空分布集中指数
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- Storms spring up easily in this region. 这个地区很容易发生风暴。
- He is earning a salary in the region of25,000. 他当时的薪金在25,000英镑左右。
- A storm that cut off power to the whole region. 切断了整个地区电力供应的暴风雨
- A planar region bounded by a circle. 圆形区，圆形空间被圆所包围的一个平面区域
- REVIEW ON CARBON ISOTOPIC CONCENTRATION INDEX OF NATURAL GAS ORIGIN 天然气成因碳同位素指标评述
