头帽

由于本研究中不是所有患者都佩戴头帽和橡皮筋，所以只分析前3项。

Because of not all patients wear head cap or elastics , we analysis the first three parts .

头帽肌激动器联合矫治安氏II类一分类骨性错牙合的临床应用一类半群的分类

Clinical evaluation of headgear-activator on skeletal class ⅱ division 1 malocclusion A classification of a kind of semigroups

前言：目的：探讨一种新型可拆式头帽-肌激动器治疗生长发育期II类下颌后缩错的可行性。

Objective : To study the possibility of treatment on class II malocclusion of mandibular retraction during growth with a new detachable headgear-activator .

后期精细胞在与头帽相对一端的顶体囊泡中央发生凹陷形成PAS阴性的中央管；

In the late spermatid , one side of the acrosomal vesicle invaginates to form a PAS negative central canal .

方法：应用直丝弓矫治器治疗安氏Ⅱ1错牙合患者9例，结合使用J钩头帽口外牵引向后滑动弓丝关闭拔牙间隙，并适当应用于拉尖牙向远中的阶段。

Method Nine class ⅱ malocclusion cases were treated with the straight wire appliance , using high pull headgear J hook in the stage of cuspid retraction and space closure .

颈椎骨成熟度与头帽颈牵引矫治时机的选择

Timing of headgear treatment based on the maturation of cervical vertebra

淋浴时保证头发不湿的贴头帽。

A tight cap worn to keep hair dry while showering .

端头帽再入时碳颗粒的旋转效应

Effect on Circumgyration of Carbon Grain during Re-Entry of Nose-Tip

改良肌激动器结合头帽牵引的制作与临床应用

Clinical Application of Modified Activator Combined with the Headgear Pull

头帽期精子细胞内质网增多，有泡状、管状，并互相吻合形成交错的网络；

In cap phase ER increased and anastomosed to form a network ;

前后都有帽舌的一种贴头帽；古代猎人戴的一种帽子。

A tight-fitting hat with visors front and back ; formerly worn by hunters .

头帽期，精母细胞层和曲细精管基部酶反应颗粒明显增多；

The layers of spermatocytes and basal chambers of seminiferous epithelia displayed weak AcPase reaction .

头帽肌激动器矫治前后下颌骨变化的研究

Mandibular changes during treatment with headgear-activator

方法：应用可拆式头帽-肌激动器对13例平均年龄10。

Methods : 13 patients were studied at the mean age of10.8 years with this appliance .

固定矫治器在固定外伤松动牙中的应用头帽肌激动器矫治前后下颌骨变化的研究

The study of fixing trauma tooth with edgewise appliance ; Mandibular changes during treatment with headgear-activator

4严格按正畸医生的要求戴用橡皮圈和牵引头帽等辅助装置。硬橡皮撑轮圈，硬质胶胎圈

Wear ligating modules , headgear and other accessories as instructed by your orthodontist . hard rubber bead

头帽的加工和从（6061-扩建）固体铝棒和耐腐蚀的阳极。

Head and cap are machined from ( 6061-T6 ) solid aluminum bar and anodized for corrosion resistance .

目的：探讨头帽肌激动器联合应用对生长期安氏II1类骨性错牙合的牙、颌、颅面的影响。

Objective To investigate the clinical effect of Headgear-activator in the treatment of skeletal class ⅱ division 1 malocclusion .

目的：根据颈椎骨成熟度，通过A点变化的研究，为临床采用头帽颈牵引矫治Ⅱ类错牙合最佳时机选择提供参考。

Objective : To provide clinical reference for timing of headgear treatment on the basis of cervical vertebra maturation .

分析、比较不同颈椎骨发育阶段头帽牵引矫治前后A点的变化情况。

The changes of point A were analyzed before and after headgear treatment at various cervial vertebra maturation stages .

顶体被杯状的核包裹，仅头帽露于精子表面。

The whole acrosome is embedded in a nuclear cup with only its apical cap being exposed to sperm surface .

方法：通过对12例患者在扩弓及内收切牙时应用牙弓夹板式扩弓矫治器及高位牵引的头帽颏兜加强支抗。

Methods : 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage .

方法将一种新型的功能性的颌骨矫形器来取代传统的机械矫治器，并进行了大胆的设计和充分的改良，增设了许多特殊装置（如口外弓、头帽等），使其矫治效果更佳。

Methods In this study , a new type of functional corrector of jaw substituting for traditional corrector was developed with supplemented with special fittings such as outside oral arch , Headgear and so on and obtained satisfactory therapeutic effects .

船闸蘑菇头和帽接触有限元计算与优化

Finite Element Calculation and Optimization of the Contact Stress between the Mushroom Head and Cap of the Ship Gate

因此，广泛应用于化工过程计算与优化中。船闸蘑菇头和帽接触有限元计算与优化

So it is used extensively in the calculation of chemical engineering simulation . Finite Element Calculation and Optimization of the Contact Stress between the Mushroom Head and Cap of the Ship Gate

分析采用三维三重非线性有限元，完全考虑了螺栓预拉力、螺栓头（帽）与板的相互作用、螺栓杆与孔壁的相互挤压作用、接触面的摩擦作用。

The analysis adopts three-dimensional triple-nonlinear FEM , factors such as bolt pretension , interaction of bolt head , nut with plates , compressing between bolt shanks and holes , fraction between faying surfaces and welding connections .

她站在那里，身穿旧外套，头戴羊皮帽，脸上脏兮兮的。

She stood there in the old coat and woollen cap , her face smudged with dirt .

在一张图片里她身穿小裙子，头戴太阳帽，摆好姿势坐在豪华别墅的游泳池的阴凉处，啜着一杯无酒精鸡尾酒，活脱脱一个百万名媛。

In one she sits dressed in shades and a sun hat , perched posing by an empty pool at a luxury villa2 sipping3 at a non-alcoholic cocktail4 with the air of a millionaire lady .

照片里，53岁的凯奇身穿长外套，头戴裘皮帽，看起来十分别扭。粉丝们则觉得偶像不阴不阳的表情十分搞笑，于是把凯奇的这一形象P入了其他各式热门照片。

The photo of Cage , 53 , looking awkward as he stood in the long coat and fur hat was soon dropped into various popular photos by fans who got a kick out of his less-than-thrilled face .

而同一时间，Algonquin的常客往往头戴棒球帽、身穿T恤，奔向百老汇观看表演。

At about the same hour , the Algonquin 's regulars , in baseball caps and T-shirts are headed out to catch a Broadway show .