1)Permanent molar恒磨牙
1.Clinical evaluation on restoration of permanent molars with interproximal caries;恒磨牙邻面龋充填治疗的疗效评价
2.Caries incidence of the first permanent molars of the primary school students in Haidian District,Beijing北京市海淀区小学生第一恒磨牙龋病调查
英文短句/例句
1.The prevalence of Carabelli's trait in a Chinese population上颌恒磨牙卡氏牙齿特征的观察研究
2.Characteristics of the Pulp Chamber of Permanent Anterior Teeth and Mandibular First Molars;恒前牙与下颌第一恒磨牙的髓室特征研究
3.The Observation of Primary Molars of the Rabbit:the Dental Formula,Physiological Root Resorption of the Second Primary Molar家兔乳恒磨牙齿式及下颌乳磨牙牙根吸收规律的观察
4.Clinical Researches of C-shaped Root Canals in Second Mandibular Molars;下颌第二恒磨牙C形根管的临床探讨
5.Analysis of Orthodontic Therapy after Extraction of the First Molars;拔除第一恒磨牙正畸治疗的临床分析
6.In Vitro study of the anatomy of 36 maxillary second permanent molars of the Uighur people维吾尔族上颌第二恒磨牙牙体解剖的离体研究
7.In one mouth, the teeth of one side were as test group, other side as control group, the first molar in non-carious pit and fissure of 500 children were sealed.方法：将500例儿童的第一恒磨牙分为两组，一侧第1恒磨牙为一组，对侧同名牙为第2组。
8.The comparative study of the automatical drift of the third molar after the extraction of the maxillary and mandibular second molar上下颌第二恒磨牙拔除后第三磨牙自行迁移情况的比较观察
9.Preliminary Study of Related Problems on Root Canal Therapy in Molars by Used of Dental Operating Microscope;恒磨牙显微根管治疗术中有关问题的初步研究
10.The Biomechanical Analysis of Mandibular First Molar in Lingual Technique;下颌第一恒磨牙舌侧矫治的生物力学分析
11.Anatomy Research of the Mesio-buccal Canal System of Permanent Maxillary First Molars;上颌第一恒磨牙近颊根根管系统解剖研究
12.Study of the Root Canal System Anatomy of Permanent Maxillary Second Molars in Shandong Province山东地区上颌第二恒磨牙根管系统解剖研究
13.Caries incidence of the first permanent molars of the primary school students in Haidian District,Beijing北京市海淀区小学生第一恒磨牙龋病调查
14.The Clinical Effect on Closing Obsolete Lower Molar Spaces with Orthodontic Treatment正畸关闭下颌第一恒磨牙缺失间隙的疗效观察
15.THE RELATED-FACTORS OF MALOCCLUSION OF LOWER SECOND PERMANENT MOLARS下颌第二恒磨牙错畸形的相关因素研究
16.Application of Dental Operative Microscope and Ultrasonic Technique in Root Canal Retreatment of the Permanent Molar显微超声技术在恒磨牙根管再治疗中的应用
17.POSSIBLE FACTORS AFFECTING THE POSITION OF THE FIRST MOLAR IN THE MAXILLA上颌第一恒磨牙在颌骨中矢状位置的影响因素
18.Observation of the surface structure of enamel in pits and fissures of permanent molars恒磨牙窝沟釉质表面结构扫描电镜观察
相关短句/例句
first permanent molar第一恒磨牙
1.Analysis of the first permanent molar caries epidemiological investigation in area of northeast China;东北地区人群第一恒磨牙龋病流行病学调查分析
2.A survey analysis of caries about the first permanent molars of students in elementary school and middle school in Urumqi;乌鲁木齐市中小学生第一恒磨牙患龋情况调查分析
3.Treatment of maxillary first permanent molar ectopic eruption with slingshot molar distalization appliance;弹弓式磨牙远移器治疗上颌第一恒磨牙异位萌出
3)First molar第一恒磨牙
1.Analysis of vertical medial root fracture of the first molar;上、下颌第一恒磨牙近中根纵裂73例分析
4)young permanent molar teeth年轻恒磨牙
1.Comparative study of two kinds of pulp-capping agents on vital pulpotomy in young permanent molar teeth;不同盖髓剂用于年轻恒磨牙活髓切断术的比较研究
5)the first permanent molar第一恒磨牙
1.An epidemiological survey of caries about the first permanent molars in students of elementary schools and middle schools in shenyang;沈阳市中小学生第一恒磨牙龋病调查分析
2.Relationship of Caries Experience Between Primary Teeth and the First Permanent Molars in 100 Children of6-year-old;100例6岁儿童乳牙患龋与第一恒磨牙患龋关系的研究
6)badly broken down molar第1恒磨牙
延伸阅读
恒显圈与恒隐圈地球上不同纬度地区能看到的星座是不一样的。对于某一点，有些星座永远也看不到的；反过来呢，有些星座在那儿一年四季都看得见。对于一个地方来说，到底哪些星座看不到呢？这里有一个小窍门，假设一个地点的纬度是φ，那么赤纬小于-（90°-φ）的天体在这里就永远看不到。反之，凡是赤纬大于（90°-φ）的天体，在这里就总能看到。因此，在天文学上，赤纬（90°-φ）称之这一地区的“恒显圈”，而赤纬-（90°-φ）叫做该地区的“恒隐圈”。比如在北京，赤纬50°就是北京地区的“恒显圈”，位于赤纬50°以上的星星老是在天上，永远也不会落到地平线以下去。而赤纬-50°叫做北京地区的“恒隐圈”，位于赤纬-50°经南的星星北京永远也看不到。而在赤道上（纬度为0°），即使赤纬是 90°和-90°的天体也能看到，也就是说，赤道上没有“恒隐圈”，在赤道上各个位置的天体都能看得见。反之，在地球的南北极，则始终只能看到半个天空，另一半天空永远看不到，这两处拥有地球上最大的“恒隐圈”。
