| 单词 | block-group level |
| 释义 | > as lemmasblock-group level block group n. U.S. a geographical unit used by the United States Census Bureau, representing the smallest area for which demographic statistics are published; frequently as a modifier, esp. in block-group level. ΘΠ society > authority > rule or government > territorial jurisdiction or areas subject to > an administrative division of territory > [noun] > subdivision subprovince1665 sub-district1790 1944 Jrnl. Amer. Statist. Assoc. 39 306 Occupied blocks in cities of 50,000 inhabitants or more were arranged in groups based on number of dwelling units in 1940 and on location of the block within the city as indicated by census tract number. Every Nth block was selected from the block groups after they had been arranged in this order. 1976 Amer. Behavioral Scientist Nov. 271 Data were mapped to the block-group level, the first level of disaggregation within census tracts. 2018 RSF: Russell Sage Found. Jrnl. Social Sci. 4 217/2 Block groups in the Detroit ring average 1,300 residents. < as lemmas |
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