向头

She fires at his windshield, and he shoots back as they drive headfirst toward each other.

她向他的挡风玻璃开枪，杰克向她还击，他们驾车头撞头地向对方的车冲去。

The second step, dividing the sternocleidomastoid just below and with preservation of its upper attachment for closure and reflecting it laterally exposes the upper extension of the splenius capitis.

第二层，可见头夹肌和头半棘肌上部。头夹肌附着于上项线，分离头夹肌，在其上部附着点保留一小肌袖以便缝合，并将其向内侧翻开，显露头最长肌和头半棘肌。

Results: The PINOF crossed the anterior midline of the radial head and then descended laterally. The site of it entering the supinator was about (13.8±4.2)mm below the superior edge of radius with the distance of (3.2±1.1)mm from the anterior midline of radius. After entering supinator tunnel under the Frohse, s arcade, the PINOF passed between superficial and profound part of supinator. It passed the lateral midline of radius below the superior edge of radius about (42.6±6.5)mm, the posterior plane below the superior edge of radius about (63.4±7.6)mm.

结果：骨间后神经越过桡骨头上缘前方中线稍偏外斜向外下方走行，距桡骨头上缘(13.8±4.2)mm、桡骨前方中线外侧(32±1.1)mm处经旋后肌腱弓深方入旋后肌管，走行于旋后肌深浅两层之间，在桡骨头上缘下方(42.6±6.5)mm越过桡骨外侧中线，在桡骨头上缘下方(63.4±7.6)mm越过桡骨后平面。

Considering the technology difficulty in satisfying direction finding accuracy and resolving angle ambiguity,the same time in defined space for ultra-band antiradiation missile seeker,theories of direction finding by phase interferometer and resolving angle ambiguity by double base line are simply introduced.

针对反辐射导弹导引头超宽带测向系统中，在较小的体积内难以同时保证测向精度和解模糊的技术难题，介绍了相位干涉仪测向原理和参差双基线解模糊方法及其原理，并结合反辐射导弹导引头的具体应用情况，提出了一种基于虚拟基线解模糊方法。

Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.

群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706)，具有草原化荒漠植被类型的成分；梭梭群落、膜果麻黄群落居中(0.875~0.890)，荒漠植被类型特征明显；沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495)，荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中，灌木层占居主导地位，群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254)，且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化，经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡，海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。

This article studied differences in postpartum fatigue and birth outcomes between women who pushed immediately and those who delayed pushing during the second stage of labor. Data were collected from primiparous women in their 38th to 42nd gestational week who did not receive epidural analgesia during labor and were free of complications during pregnancy. Using a quasi-experimental design, 72 participants selected by convenient sampling were assigned based on individual participant's preference to either an experimental or control group. For the experimental group, pushing was delayed until the point after full cervical dilation at which the mother felt a strong physical pushing reflex, the fetal head had both descended to at least the +1 level in the pelvis and turned to the occiput anterior position, and uterine contractions were at least 30 mmHg. For the control group, the physician instructed mothers to begin pushing after full cervical dilation at the point when the fetal head was in the occiput anterior position and uterine contractions were at least 30 mmHg.

本研究目的在探讨初产妇女第二产程立即用力与延迟用力对产后疲惫及生产结果的影响，收案对象为怀孕38-42周初产妇女、待产期间未施打硬脊膜外麻醉，且怀孕期间无任何合并症，於待产期间向其解释研究目的及收案方法后予以收案，采类实验设计法，以方便取样并依个案之意愿分派於实验组及控制组，实验组於子宫颈完全扩张后等到强烈想用力的感觉、胎头位到达坐骨棘连线下1公分以下、胎头位置转到枕前位、子宫收缩规律强度至少30mmHg才教导向下用力；控制组於子宫颈完全扩张后即教导向下用力，共收案72位。

The table base with the table backand forward is Y. The spindle head going up and down is thedirection of Z axis feed. The Z motor takes with brake. when thepower is cut off, the motor stops in order to prevent the spindlehead fall down because of self-gravity.

工作台底座带工作台前后运动为Y轴方向。Z向进给为主轴头的上下运动，并且Z向电动机是带制动器的，当断电时，Z向刹紧，以防主轴头因自重而下滑。

The main rivers are Lechang into the county from the northeast corner, by the flow of Shaoguan Wu Gui Town rivers; originated in the northwest and the Yangshan county border Ah fork top and flows from west to east Nanshui reservoir, through the county, import Beijiang rivers of milk; originated in the north-west county and the junction of Yizhang County, Hunan Province Meng Hang Shi Dong Lu, from northwest to southeast through the Daping, bridges, Bibei, Gui Yang, head into the Wujiang River ; originated in the northern foot of the courtyard of the ant hill rock, from north to south flow through Luoyang, large cloth imported Anglo-German city of Tai Tam River.

主要河流有由乐昌流入县境东北角，经桂头镇流向韶关的武江河；发源于县境西北与阳山交界的丫叉顶，由西向东流入南水水库，穿过县城，汇入北江的乳江河；发源于县境西北面与湖南省宜章县交界的猛坑石东麓，由西北向东南经大坪、大桥、必背、桂头流入武江的杨溪河；发源于天井山北麓的蚁岩，由北向南流经洛阳、大布汇入英德市的大潭河。

According to the principle of elasticity-viscoelasticity, equations of stress and strainfor EMP surface layer under the load of different indenters and indenter contact whilesliding were calculated separately. The indenters contain sphere, cylinder and taper.

粘弹性对应原则，计算出了受一般外形压头法向无摩擦力作用下和受球、圆柱平头、圆锥形压头法向载荷作用下，以及在滑动过程中相应压头形态接触作用下EMP表层的应力、应变方程。

The process of sand absorption is:(1) the vibration head vibrates and losses the sand layer, and supply high pressure air into the sand absorption head;(2) the high pressure air generates negative pressure in the sand absorption pipe when it is discharged out from the sand absorption;(3) the sand absorption head and the vibration are shifted downwards and maintains the water flow straightly.

取砂土的过程为：(1)振动头振动松散砂土层，同时向吸砂头供入高压空气；(2)高压空气通过吸砂头从排砂管向上排出的过程中，在吸砂管内产生负压，吸砂管将管口处的水和砂土吸入到吸砂头内，在高压气流作用下，吸砂头内的砂、水和气混合而成的三相流通过排砂管排出到受砂船上；(3)在吸砂的过程中，适时地将吸砂头和振动头下移并保持钻孔套管中的水流畅通。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。