充填率 meaning in English
compaction percentage
degree of fill
filling ratio
pack completeness
packing fraction
Examples
- Objective : to analyze the data of the permanent teeth caries and treatment needs of six age groups people in beijing with statistical methods which came from the second national oral health survey of china in 1995 . method : the total sample of 12792 ( 8520 urban , 4272 rural ) for 6 age groups ( 5 , 12 , 15 , 18 , 35 - 44 , 65 - 74 - year - old ) were examined . the diagnostic criteria recommended by the world health organization were used in this study ( oral health survey basic methods third edition , 1987 ) . result : the dmf and dmft incidence of six age group in the urban was higher than that in the rural on the whole . the dental caries level of 12 - year - olds was very low . f percentage of 12 - year - olds was 15 . 42 % ( urban ) and 3 . 23 % ( rural ) . the current situation of chinese dental care cannot meet the who objectives for the year 2000 . conclusion : it pointed out that we should emphasize oral health education and enhance the consciousness of health care . since the treatments of caries became more complicated with the age , we should perform the primary oral health care in the early stage
目的:本文对1995年第二次全国口腔健康流行病学调查中,北京地区六个年龄组人群的恒牙患龋及治疗需要情况进行统计学分析.方法:采用整群抽样方法,对北京市六个年龄组的城乡人群12792人(城市8520人,农村4272人)进行了口腔检查,诊断标准根据世界卫生组织1987年第三版<口腔基本调查方法>一书.结果:各年龄组的患龋率及龋均基本是城市高于农村, 12岁年龄组的患龋情况处于很低水平, 12岁年龄组恒牙充填率为15 . 42 (城)和3 . 23 (乡) ,结论:本结果离2000年目标有一定差距,提示我们应加强口腔健康教育,提高居民口腔保健意识.另外,随年龄的增长牙齿治疗的复杂程度逐渐增高,因此,应在人群中开展初级口腔卫生保健,做到早发现,早诊断,早治疗 - According to the tests on ball - feed ratio , medium filling percent age , ground pulp density , active power and grinding efficiency , the authors anal yse main factors affecting ball mill s active power and grinding efficiency , es tablishing the relationship between ball mill s internal state ( such as ball - f eed ratia , medium filling percentage and ground pulp density ) and external param eters ( such as active power and grinding efficiency ) and giving appropriate oper ating parameters for improving grinding efficiency
通过对球磨机球料比、介质充填率和磨矿浓度与有功功率和磨矿效率试验，分析了影响球磨机功率和磨矿效率的主要因素，建立了球磨机内部状态(球料比、介质充填率和磨矿浓度)与外部参数(有功功率、磨矿效率)之间的关系，提出了改善磨矿效率的合理操作参数。