三角形

The results show that the design method which unifies the stereographic projection and the spherical triangle analytic geometry is one kind of both simple and the quick methods.

研究表明，采用极射赤平投影和球面三角形解析几何相结合的设计计算方法，是一种既简便又快捷的定向钻进轨迹设计方法。

In this paper,the following transformations are introduced in computer aided planar composition:sectorial transformation triangular transformation,trigonometric function/triangular wave transformation, madulation transformation and spherical mirror reflection transformation.

该文探讨和总结了在计算机辅助平面构成中的5种特殊变换：扇形变换、三角形变换、三角函数／三角波变换、调制变换、球面镜反射变换。

Angular exported, but can prove that the proposed formula is applicable to any spherical triangle .

角形导出的，但是能够证明所得公式适用于任何球面三角形。

Then the dilated spherical molecules form triangle spaces to let air go through the dressing.

吸液后的高分子膨胀成球状，并形成众多三角形空间达到透气的效果。

Their shapes were diversiform such as triangle spherical, nummular, elliptic and fusiform etc.They had one or several tuber.The immunopositive fibers were strings of pearls,and crossed each other. This experimentation results showed that development level of nNOS immunopositive neurons approach the adult rabbit when it is a young rabbit. The effete change appears when rabbits turn ageing.That was expression intensity weaken.

nNOS阳性神经元呈棕褐色，着色主要位于胞浆内，细胞核处染色较为浅淡；神经元胞体形态多种多样，有三角形、圆形、椭圆行、梭形等多种形状，神经元突起有一个或者数个；nNOS阳性纤维大多呈棕色串珠样，有些区域nNOS阳性纤维交错分布，相互交织成网状。

Second, he made an integrated discussion on the existence and uniqueness of solution for spherical trigonometry.

其二，球面三角形解的存在性和唯一性的讨论。

This parameter is Sphericity, which represents the degree of similarity between two triangles.

这个参数就是球度，表示了两个三角形之间的相似度。

By introducing the concept of"nihility point"and the method of"spherule bounding" in the algorithm, we have simply and effectively realized boundary discretization in 3-D space.

这种算法采用"虚点"概念，按照一定的规则用"小球跳跃法"简单而有效地实现了三维场域边界的三角形离散。

As the trough of D, E and the slot F (it belongs to the other end of spiral) of the sealing surface of convergence, there is a triangle similar to a positive gap a'b'c ', so D, F, E will also be connected.

由于在槽D、E与槽F相衔接的密封面上，也存在着类似于正面的三角形缺口a'b'c'，所以D、F、E也将相通。

As the slot D, E and slot F (it belongs to the other end of spiral) converging sealing surface, there are also similar to the front of the triangle gap a'b'c ', so D, F, E will be connected.

由于在槽D、E与槽F相衔接的密封面上，也存在着类似于正面的三角形缺口a'b'c'，所以D、F、E也将相通。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。