口率，读音为kǒu lǜ，是一个汉语词语，意思是按人口比例。
开口率 Aperture ratio ; Aperture Rate ; head aperture ratio
出口退税率 export tax rebate rates ; export tax rebate rate ; export rebate rate ; rate of export tax rebate
镜口率 numeric aperture
人口增长率 population growth ; population growth rate ; Growthrateofpopulation ; rate of population growth
人口文盲率 the illiteracy rate among the population
边际进口率 marginal import quota
出口率下降 EXPORT SUBSIDIES
进口暂定税率 the temporary tax rate
缺口率 GAP Ratio
电视综合人口覆盖率 television broadcasting coverage rate
经对试验结果分析表明：在其它工艺参数不变的情况下，随着焊接速度的增加，焊缝组织的晶粒度减小。铜管的扩口率增加。
The results reveal that the grain size of welding seam decreases with the increase of welding velocity and the rate of tubes' extension increases under the same technological conditions.
通常口墨盒的利润率比打印机本身的利润率高。
In general, the profit margin is higher on ink refills than on printers themselves.
在大多数国家，口腔癌症发病率从每10万人口一例到10例不等。
Incidence of oral cancer ranges from one to 10 cases per 100 000 population in most countries.
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