中线

Base on central line coordinate given out and calculation formula provided by this paper that calculate azimuth of normal line of any point on central line, calculation of side line coordinate is connected with central line coordinate only, and has no concern with other calculation.

提出了利用道路中线的法线求解路线任意点坐标的计算模式，在计算出中线坐标的基础上，给出了计算中线任一点法线方位角的计算公式，使边桩坐标的计算只与中线坐标有关，而与其他计算无关。

N transfer Taocha Headwork water diversion project is run by the State Council approved the construction of the national large-scale water conservancy project is a project of N transfer an important part of both the water diversion project Headwork middle main channel Butterfly Valveswater diversion headworks but also Danjiang auxiliary dam reservoir engineering design for the new site redevelopment and build more power stations buildings are mainly cited sewers grvity induced gate stilling basin power plant and management of space and so on.

南水北调中线陶岔渠首枢纽工程是经国务院南水北调办批准建设的国度大型水利工程，是南水北调中线一期工程的重要状干部分，渠首枢纽工程既是南水北调中线输水总干渠的引水渠首，也是丹江水库的副坝，工程设计为新址重建，并增建发电站，建筑物主要有引渠、重力坝、引水闸、消力池、电站厂房和治理用房等。

Laying-out of coordinates, elevation, subtense and coordinates determination, can be carried out by using of total stations, in which the mathematic model of laying-out excavation cutting with coordinates method is derived.

0引言放样路堑开挖线的传统方法是将仪器架设在线路中线上，沿线路中线的法线方向用距离来寻找开挖线的位置(即中线设站距离逐点逼近法)[1]。

The quality of the neutral line and its grounding will influence directly to the operation of the combined hi-frequency switching mode power supply.

交流供电线路中的中线及中线接地质量的好坏，对通信用高频开关组合电源的工作有直接影响，实际应用中经常出现因中线及中线接地故障造成设备损坏，因此需加强对中线的维护。

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。

The abdominal wall in the left lower quadrant, 2 finger breadths (3 cm) cephalad and 2 finger breadths medial to the anterior superior iliac spine, has been shown to be thinner and with a larger pool of fluid than the midline and is usually a good choice for needle insertion for performance of a therapeutic paracentesis.27 The right lower quadrant may be a suboptimal choice in the setting of a dilated cecum or an appendectomy scar.

在过去，常常将腹部正中线耻骨与肚脐中间定为穿刺点，现在，由于腹腔穿刺引流大量液体以及腹中部脂肪厚度增加，左下腹成为腹腔穿刺部位（表1），在左下腹部中线至髂前上棘连线上2指宽（3cm）与距髂前上棘2指宽，已经显示较中部脂肪少及腹水较多是治疗性腹腔穿刺好的首选部位27，在盲肠有扩张或阑尾切除术后瘢痕时右下腹是次选的穿刺部位，应避开腹壁下动脉，这些血管走行在耻骨与髂前上棘之间的中线然后在腹直肌中向上行走，，腹壁可见的侧支循环亦应该避开，腹腔镜检查发现侧支循环可出现在中线并且在腹腔穿刺时有导致血管破裂的风险28。

Compared the patient s pain,the anterior/middle/posterior-height of every operative centrum, the angle of kyphoscoliosis before and after the operation.

结果：每个椎体注入骨水泥3～6ml，平均4.12ml，术前椎体前缘高度13.04±3.72mm，中线高度15.44±5.25mm，术后椎体前缘18.41±3.77mm和中线22.48±2.88mm与术前的椎体前缘和中线有显著差异(P＜0.05)。

In the central nervous system, the co-localized serotonin neuron with GABA exists only in parts of the medullar raphe nucleus, but there is no this kind of neurons in the midbrain raphe nucleus and non-raphe serotonergic cell groups in the brainstem.

在中枢神经系统内，只有部分延髓中线核团的5-HT能神经元同时含有GABA，而中脑中线核团和脑干的其他非中线5-HT细胞群内未见这种共存神经元的存在。

The function of neutral line in Y connection of asymmetric loads;2. The quality of the neutral line and its grounding will influence directly to the operation of the combined hi-frequency switching mode power supply.

交流供电线路中的中线及中线接地质量的好坏，对通信用高频开关组合电源的工作有直接影响，实际应用中经常出现因中线及中线接地故障造成设备损坏，因此需加强对中线的维护。

The endometrial echo patterns visualized sonographically were divided into three categories by Gonen: pattern A: present a triple-line pattern or multilayered endometrium in which hyperechogenic outer lines and a well-defined central echogenic line were visualized, with hypoechogenic or black areas seen between lines; pattern B: present an echo pattern in which the endometrium had the same echogenicity as the myometrium, the central echogenic line is dim; pattern C: present a homogenous endometrium with no central echogenic line.

按照Goden等人的分型标准，晚滤泡期子宫内膜在超声下可以分为三种类型：A型：即三线型，为外层及中部强回声，外层与宫腔中线之间为低回声区或暗区，宫腔中线回声明显；B型：为均一的中等强回声，宫腔中线回声不明显；C型：为均质强回声，无宫腔中线回声。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。