三角

Results: The anterolateral length of the origin of the deltoid muscle is (8.73±0.64) cm, the distance between the acromion and the deltoidtuberosity is(15.49± 1.57) cm.

结果：三角肌前外侧部起点长度为(8.73±0.64)cm，三角肌肩峰外侧端起点至三角肌粗隆长(15.49±1.57)cm。

The point where the anterior branch of axillary nerve crosses the line junction the acromion to the deltoid tuberosity lies below the acromion (6.19±0.49) cm, and it corresponds to the junction of upper 2/5 and lower 3/5 of the length of the deltoid muscle.

腋神经前支于肩峰外侧端与三角肌止点连线相交点位于肩峰下(6.19±0.49)cm，相当于肩峰与三角肌止点连线间三角肌长度的上2/5与下3/5交点。

The calculated results show that the X3+ cations each has two stable structures: the regular trigon(D3h) and the line with the regular trigon(D3h) being the ground state, while for three neutral X3Cl clusters, Sc3Cl has three stable isomers: the trigon-pyramidal(C3v), bidentate(C2v-1), and C2v-2 structures, Y3Cl and La3Cl each has only two stable isomers: the trigon-pyramidal(C3v) and bidentate(C2v-1) structures.

计算结果表明，三个X3+阳离子有两个稳定异构体：正三角型(D3h)和线型，其中正三角型为基态；对于三个中性的X3Cl团簇，Sc3Cl 有三个稳定的异构体：三角金字塔型(C3v)、双齿型(C2v-1)和 C2v-2型（图 1 e）；Y3Cl 和 La3Cl有2个稳定的异构体：三角金字塔型(C3v)和双齿型(C2v-1)。

Based on the improvement of Taubin s discrete curvature estimation method of triangular mesh by the adoption of area and angle weighted triangle vertex normal vector calculation formula and triangle centroid weights, a novel algorithm for triangular mesh regularization is presented.

采用面积夹角加权的三角网格模型顶点法矢及三角片质心权值对Taubin的三角网格模型离散曲率计算方法进行了改进，在此基础上提出了一种新的三角网格模型优化调整方法。

Results:(1) The superior wall of the CS includes Dolenc triangle,Hakuba triangle,carotid triangle and oculomotor triangle.

结果：(1)海绵窦上壁包括前内侧三角、内侧三角、颈内动脉三角和动眼神经三角。

Chapter 2: The principles of triangular Bezier surface modeling were introduced, including degree elevation, differentiation, split and reginal change, etc. The explicit triangular Bezier C〓 modeling and parametric triangular Bezier GC〓 modeling were also introduced.

第二章 系统研究了Bezier三角曲面的基本理论，包括Bezier三角曲面的升阶、求导、分割和区域变换理论；给出了显式Bezier三角曲面的C〓构造和参数Bezier三角曲面的GC〓构造方法。

To systematicallyinvestigate this landmark, we conducted a study in four phases:1 Two blindfolded examiners determined the distance betweenthe tuberosity's medial border and the clavicle's lateral endin 100 dried clavicles and then 2 performed subclavian veincannulation in 20 fresh human cadavers using the tuberosityand the suprasternal notch as landmarks. 3 Three-dimensionalreconstructions of the subclavian artery and vein and surroundingstructures were derived from computed tomography datasets of10 patients. The length of the path of a virtual subclavianvein cannulation with the deltoid tuberosity landmark was measuredbilaterally. 4 In a prospective, randomized trial, subclavianvein cannulation was performed in 60 patients with a standardapproach or with the deltoid tuberosity as landmark.

为系统地研究这个解剖标志，作者将本研究分为四个阶段：1 双盲检查100个干燥的锁骨测量其三角肌粗隆内侧缘至锁骨侧面末端的距离；2 在20具新鲜的尸体上以三角肌粗隆和胸骨上切迹为标志进行锁骨下静脉穿刺；3 利用 CT 所获取的数据资料对10个病人的锁骨下动脉和静脉以及周围结构进行三维重建，测量两侧以三角肌粗隆为标志的虚拟锁骨下静脉置管路径的长度；4 选择60例病人以标准路径或三角肌粗隆为标志进行锁骨下静脉穿刺的前瞻性随机试验研究。

To systematicallyinvestigate this landmark, we conducted a study in four phases:1 Two blindfolded examiners determined the distance betweenthe tuberosity's medial border and the clavicle's lateral endin 100 dried clavicles and then 2 performed subclavian veincannulation in 20 fresh human cadavers using the tuberosityand the suprasternal notch as landmarks. 3 Three-dimensionalreconstructions of the subclavian artery and vein and surroundingstructures were derived from computed tomography datasets of10 patients. The length of the path of a virtual subclavianvein cannulation with the deltoid tuberosity landmark was measuredbilaterally. 4 In a prospective, randomized trial, subclavianvein cannulation was performed in 60 patients with a standardapproach or with the deltoid tuberosity as landmark.

为系统地研究这个解剖标志，作者将本研究分为四个阶段：1 双盲检查100个乾燥的锁骨测量其三角肌粗隆内侧缘至锁骨侧面末端的距离；2 在20具新鲜的尸体上以三角肌粗隆和胸骨上切迹为标志进行锁骨下静脉穿刺；3 利用 CT 所获取的资料资料对10个病人的锁骨下动脉和静脉以及周围结构进行三维重建，测量两侧以三角肌粗隆为标志的虚拟锁骨下静脉置管路径的长度；4 选择60例病人以标准路径或三角肌粗隆为标志进行锁骨下静脉穿刺的前瞻性随机试验研究。

At first, the algorithm triangulates the boundary of the data, then encrypts the grid and builds equality triangle network, at last embeds the faults into the grid to complete triangulation.

该算法首先对数据边界进行初始Delaunay三角剖分，然后将其变尺度加密，生成较均匀三角网，最后将断层边界强行嵌入三角网，实现了三角网格化。

Section method is to split the pit slope surface into several trapezoids so as to calculate their surface area;through a digital survey of the pit slope surface,a numerical elevation model is set up,on the surface the triangular mesh is built,and all the triangular meshes are piled up to get the surface area.

小三角锁法是通过对宕口坡表面数字化测量，根据测量数据建立数字高程模型，并在表面建立小三角锁，对所有小三角的面积累加得到面积的一种方法。小三角锁法大大提高了计算的准确度和效率。

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。