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- PURPOSE: The purpose of this study was to evaluate the effect of high pull J hook headgear (HPHG) on root resorption of maxillary incisors during orthodontic treatment. 摘要目的：评价标准方丝弓配合高位J钩对正畸治疗中牙根吸收的影响。
- PURPOSE: The purpose of this study was to evaluate the effect of high pull J hook headgear(HPHG) on root resorption of maxillary incisors during orthodontic treatment. 目的:评价标准方丝弓配合高位J钩对正畸治疗中牙根吸收的影响。
- Keywords cervical pull headgear;cephalogram;molars distalization; 口外弓颈牵引;头影测量;磨牙远移;
- Applecation: suitable for producing nedling non-woven cloth woth high densoty,high pulling and high qulity. 用途：适用于高密度、高拉力、高品质针刺非制造布生产。
- Demands on new compositions, higher pull rates, and improved glass quality are met with utilisation of tank operation feedback, melting laboratory investigation, and mathematical modelling. 基于新玻璃配方、更高的熔化率和更好的玻璃质量的要求，新的设计应在实际的熔窑操作经验反馈、实验室熔化试验和数学模型的基础上进行。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- Goods of high quality are few and far between these days. 质地精美上乘的物品现在不多见。
- The medieval town was fortified with a high wall and a deep moat. 这座中世纪的城市周围建有城墙和护城河。
- I set a high value on his advice. 我认为他的忠告很有价值。
- Many competitors have entered for the high jump. 已有许多人报名参加跳高比赛。
- She enjoyed high prestige among the masses. 她在群众中享有很高威信。
- The dresses in the shop are priced high. 这家商店的衣服定价很高。
- The high salary reconciled me to living abroad. 我为获高薪也只好在国外生活。
- Trucks shuttled to and fro on the high ways. 车辆在高速公路上穿梭行驶。
- These rocks are awash at high tide. 这些礁石在涨潮时被海水淹没。
- A high wall fetched in an ancient small town. 一道高高的城墙围绕着一座小小的古城。
- I am glad to always find her in high spirits. 我对经常看到她情绪高涨感到很高兴。
- He had a high fever which nearly finished him off. 他发了一次高烧，差点把命送了。
