j-hook wrinkle 挂钩皱
j-hook poor die-cut 挂钩剪裁不良 ; 挂钩裁剪不良
j-hook damaged 挂钩烂
J-HOOK DELIMITATION 挂钩内层分离
J-hook 挂钩
J-HOOK DAMAGE 挂钩烂
Double J Hook 双J钩
J-hook sticker 挂钩贴
J-hook headgear J形钩
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。
Ray R K; Jonas J J; Hook R K Cold rolling and annealing textures in low carbon and extra low carbon steels.
李一鸣；任慧平；金自力低碳钢板冷轧退火组织和织构的研究。
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