头的

LiWei INC was founded in 1999, integrating scientific research, design, production, operating in one, professional production and sale of Rock Drilling, mining accessories, engineering tools, rock drilling tools, milling machine milling teeth, milling Machine Cutter, road Mixer Cutter, coal mine cut teeth with various types of Shearer with conical teeth, knife-shaped cross-sectional tooth, boring machine with boring tooth, shield knives, metro shield machine shield configuration tools and various types of mining bits, rock drills, anchor drills, rotary drilling engineering cut-off teeth, using rotary drilling rig Rotary Drilling teeth, tooth roadheader, Rotary Drilling teeth, bucket teeth, tooth Block, and a variety of Rock Drilling Bits, including word, cross drill head, the ball tooth drill head, drill sets, drill tail, drill rod and so on.

香港立威刀具有限公司始建于1999年，集科研、设计、生产、经营于一体，专业生产和销售凿岩钎具、矿山配件、工程工具、岩土钻掘工具、铣刨机用铣刨齿、铣刨机刀头、路拌机刀头、煤矿用截齿、各种型号的采煤机用镐形截齿、刀形截齿、掘进机用掘进齿、盾构刀具、地铁盾构机用盾构刀具及各种型号的矿用钻头、岩石钻头、锚杆钻头、工程用旋挖截齿、旋挖钻机用旋挖齿、掘进机截齿、旋挖齿、斗齿、齿座和各种凿岩钎具包括一字钎头、十字钎头、球齿钎头、钎套、钎尾、钎杆等。

Head-like, or in a head-shaped cluster, as the flower in the Compositae.

头状的 Capitate 头状或呈头状成簇，如菊科的花。

The results show that single structure parameters (width and depth of flow path/passage, and height, and angle of dentations) are local and difficult to represent the anti-clogging ability of emitters. Characteristic structure parameters(minimum size of cross section, hydraulic radius and dentitions spacing) can represent the anti-clogging ability of emitters in a sense. There are anti-clogging critical values under the test. Rated flow Qr and the ratio of diameter of labyrinth passage to diameter of particle η are well cor related to the anti-clogging ability and have anti-clogging critical values too.

结果表明：用单一结构参数(流道宽度 W 、流道深度 D 、齿高度 h 和齿角度θ)表征其抗堵塞性能存在局限性；结构特征参数断面最小尺寸 min(D，W、水力半径 R 和齿间距 l 能较好反映滴头流道横、纵断面的结构特征，在不同程度上表征了流道的抗堵塞性能，且在试验条件下各自均存在抗堵塞临界值；滴头额定流量 Qr 和迷宫滴头径粒比η与抗堵塞性能相关性较好，且存在抗堵塞临界值。

BEGINNING with receding hairlines, every second man suffers from hair loss to some degree, and it has always been suspected that hereditary factors are important in causing hair loss.

秃头刚开始的征兆就是发线向后移。每两个男人中就有一个会有不同程度的秃头现象。人们一直怀疑遗传因素是否在导致秃头方面有重要影响。

With the geometry model of the ball end mill, the method of theoretic cutting force analysis combined with the identification of the experimental coefficients of milling forces is used to develop the milling force model of a helical ball end mill.

给出了球头铣刀刃线几何模型，采用理论切削力分析与实验-系数识别相结合的方法，建立了新的螺旋刃球头铣刀的铣削力模型；建立了考虑刀杆柔性的球头铣刀铣削振动模型；考虑刀具动态变形和工件表面波纹对切削厚度的再生反馈，建立了球头刀铣削动力学模型，对动态铣削过程进行了仿真，证明离线仿真可以对铣削过程动特性做出准确的预测。

No problem, but look for head-shaped, it is best set to buy a baby pillow-shaped head, head to the side would not be a distortion.

侧睡没什么问题，但为了头形的好看，最好是买个定头形的孩子枕，头就不会向一边歪了。

The results showed PERV proviral DNA and mRNA could be detected in all 31 individuals by PCR and RT-PCR, respectively. env-A, env-B and env-C were only detected in 2 individuals, while in the other 29 individuals, only env-A and env-B but not env-C was detected. The quantity of DNA in PCR amplification of PERV genes should be more than 15 ng.

PCR和RT-PCR结果表明，所检测的31头沙子岭猪均带有PERV前病毒DNA，耳样组织中均有PERV mRNA表达，其中有2头个体携带 env-A、env-B、env-C 3种囊膜蛋白基因，而其余的29头个体只带有env-A、env-B 两种囊膜蛋白基因，未检测到env-C基因。

For the upper and lower physical decomposition of the fuel pump, pump body can be placed, open side cover, remove the pump head fastening nut, remove the pump head, hand clamp plunger living roots, slowly out the plunger and spring cylinder fault, with clean petrol or diesel repeated washing, wash, after-loading complex (note the plunger into the regulation of regulation must fork arm), and alternately tighten pump head nut, rotating camshaft, oil pump pulled the handle to manipulate the review.

2对于上、下体能分解的喷油泵，可将水泵体平放，打开侧面盖板，卸下泵头紧固螺母，取下泵头，用手钳夹住柱塞根部，慢慢抽出故障缸柱塞和弹簧，用清洁的汽油或柴油反复清洗，洗净后装复(注意柱塞调节臂必须装入调节叉内)，并交替拧紧泵头螺母，转动凸轮轴，扳动油泵操纵手柄复查。

The use of differential pressure compensator resolved the difficult problem that partial fan was damaged when fiexible air duct was withdrawn in long blind heading series ventilation , which renewed the mutil partial fan ventilating method.

压差补偿器装置成功地解决了长独头掘进串联通风中柔性风筒被抽出时局部扇风机吸瘪的技术难题，刷新了长独头掘进多台局部扇风机串联通风的常规方法，极大地改善了长独头掘进工作面的生产作业环境。

The band played on, and the swaying couples twisted like bobbing marionettes, to and fro, to and fro, across the great ball and back again, and it was not I who watched them at all, not someone with feelings, made of flesh and blood, but a dummy-stick of a person in my stead, a prop who wore a smile screwed to its face.

Daphne du Maurier， Rebecca 琴鼓声不绝于耳，舞池里双双对对的舞伴，像牵线木偶似地摆动扭曲着身子，转过来转过去，转过来转过去，从大厅的这头转到那头，又从那头转到这头；那个站在一旁冷冷静观的似乎不是我本人，并不是一个有血有肉，有感情的活人，而是一具借托我这形体的泥塑木雕，一具钉上了笑容的木头架子。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了