变圆

Calcium and phosphorus, is the formation of the skeleton of "construction materials", the lack of new bone formation can lead to obstacles, bone Liang small, osteoporosis, soft, causing the skull to soften, according to the kind of bombs have table tennis sexy, it means that a "ping-pong head "; At the same time, the accumulation of osteoid tissue, the amount will be led to the child appears at the top of the skull circular symmetry sudden, the head thus become square, commonly known as transcranial side, naturally lose their sense of beauty.

钙与磷，是形成骨骼的"建筑材料"，缺乏可导致新骨形成障碍，骨梁细小，骨质疏松、变软，造成颅骨软化，按之有乒乓球样的弹性感，谓之"乒乓头"；同时骨样组织堆积，亦会致使孩子额顶部出现对称性颅骨圆突，头颅因而变得方方正正，俗称方颅，自然失去美感。

The thermal curing mechanism and property of low dielectric films based PPSQ were studied by FTIR, Gaussian curve fitting and Spectroscopic Ellipsometry.

FESEM测试表明PPSQ在485℃之前能得到平整致密的薄膜；在485～525℃由于苯基的氧化分解有致孔的效果，孔洞结构为圆孔；在525℃之后圆孔将变成连孔，薄膜在局部将变得致密。

The axially symmetric torsion of rigid circular shaft of varying diameter embedded in an elastic half space is studied by line-loaded integral equation method, where the problem is formulated by distributions of fictitions fundamental loads PRCHS (point ring couple in half space) along the axis of symmetry in interval of the shaft and is reduced to a one-dimensional and non-singular Fredholm integral equation of the first kind and is easily solved numerically.

弹性半空间；本文用线载荷积分方程法研究嵌在弹性半空间的刚性变直径圆轴的轴对称扭转。利用将"半空间的点环力偶"这一虚的基本载荷沿对称轴的圆轴区间中分布就能使本问题归结为一个一维的非奇异的Ferdholm第一种积分方程，且很易用数值求解。文中给出刚性圆锥，圆柱，圆锥柱嵌在弹性半空间的扭转的数值计算的例并和他人的已知结果相比较。

Adopting the conformal mapping or rotation axis etc complex methods which areoften used to treat with the hole or cavity problem,a two-dimensional cavity ofeither simply or multiply connected region is projected into the interior of acircle or an annulus.As well as the global coordinate system is turned into thelocal coordinate system.

采用处理孔口问题最常用的映射函数和移轴等复变函数方法，把复杂的单连通区域和某些复连通区域型二维孔洞转化为简单的单位圆内区域或圆环区域，把整体坐标转为局域曲线坐标，而，最终把问题简化归结为一组无穷代数方程组的求解问题。

Based on the variational principle of initial post-buckling theory, the neutral equilibrium equation of the arch under uniform compression is derived.

基于初始后屈曲理论的变分原理，导出了圆拱在均匀压力作用下弹性失稳的中性平衡方程，并计算了圆拱反对称屈曲的临界压力，得到了与经典解一致的结果。

As the number of impressions increase, however,the pitch circle diameter design becomes progressively more impracticable as the runner length, which is a function of the pitch circle diameter, is also increased.

可是随着型腔数目的增加，由于流道长度是等分圆直径的函数，所以设计的流道长度随着等分圆直径的增加变得不现实。

In recent years, Feng Kang has advanced a more natural and direct redu-ction, i. e. the reduction via Green's formula and Green's function.

近年来冯康又提出一种更自然而直接的归化，即从Green公式及Green函数出发将微分方程边值问题化为边界上的含有广义函数意义下发散积分有限部分的奇异积分方程，这种归化在各种边界归化中占有特殊地位，被称为正则边界归化，本文将这一理论应用于重调和椭圆边值问题，研究了其正则归化的性质，并通过利用Green函数、Fourier分析及复变函数论方法等不同途径求出了在上半平面、单位圆内部、单位圆外部三种区域的Poisson积分公式及正则积分方程，其离散化可用于实际计算。

OVC has an important role in the physiological and pathophysiological process of liver cell development, growth, proliferation, and carcinomatous change.

肝脏严重损伤时，卵圆细胞受自身状态和微环境的调节，分化为成熟肝细胞和胆管细胞，但其分化方向并不是固定不变，有研究表明，卵圆细胞在特定的自身状态和微环境的调节下，可以分化为肝癌细胞。

Based on the analysis of the experimental results of flue gas temperature distribution in horizontal flue in a 300MW pulverized coal tangentially fired boiler at variable load, the characteristics of the flue gas temperature distribution in horizontal flue of this boiler at variable load are summarized in this paper.

通过对某 3 0 0 MW四角布置切圆燃烧锅炉在变负荷工况下水平烟道内烟温分布的现场试验结果的分析，指出了四角布置切圆燃烧锅炉水平烟道内烟温分布的特点及其随负荷变化的规律。

However,their seats have to be cleaned carefully to make sure that the disks are always perfectly parallel.to prevent the driving shaft from getting out of alignment.

尽管如此，圆盘的座子一定要仔细清洁，以确保这些圆盘一直保持完美的平行，以免造成驱动轴变偏。

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