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An improved algorithm of two dimensional convex hull based on included angle is proposed, and all the convex points are achieved through the maximal included angle by the increasing counter-clockwise direction. When more than one point satisfies the maximal included angle, the most distant point to the previous point is regarded as the next convex point.

提出了基于夹角的平面点集凸包改进算法，以最大夹角，按顺时针的方向可得到所有的凸点，当满足最大夹角的点不唯一时，以离当前凸点最远的点为凸点。

Diving in the Maldives are familiar with diving services, almost all from Germany and Switzerland to the DIVE MASTER, almost all types of diving BOAT DIVE, the day diving trip, from a fixed point in the morning and 9:00 pm 2 The main point of departure, regardless of which one-point dive, dive to sit with the "DHONI Anthony ship", in the range of about 10-30 minutes, going farther if the diving point, the range of about 60-90 minutes in between.

在马尔代夫熟悉潜水点与潜水服务的，几乎全是从德国与瑞士来的DIVE MASTER，潜水型态几乎全是BOAT DIVE，每天的潜水行程，固定从早上9点出发与下午2点出发为主，无论是哪一个潜水点，坐潜水用的「DHONI多尼船」，航程约在10到30分钟间，如果到比较远的潜水点，则航程约在60至90分钟间。

If the point of the ellipse, the vrachyaxis ratio 4: 3, the original 4 per cent of elliptic point Sun on the rest is not 1％, but not all get as the point of vrachyaxis length happens to be a circular diameter of 3% of the net-point.

如果把这个椭方不面的不幼、不幼轴比例规不退为4： 3，则本来4％的椭方不面晒到版上剩下的不离不是1％，而是残被晒不有了！因为这个不面的不幼轴不幼量刚好是方形3%网不面的直径。

Point X is the Exclave of point A and could represent point A according to point Z.

点X作为点A的外飞地，对于Z而言X等同于A

This paper will describe,analyze and explain the phrase of "V+ge+VP"from the two parts: diatronic and syntronic.In the syntronic point,we fully describe the surface syntax structure, the deep–seated semantic relation and the exterior pragmatic functions from point to side,then we compare the difference and the homology with "V+de+VP"from multi-point.At last,we analyze and explain the pragmatic functions by focus theory and metrics principle. In the diatronic point, we explore the origin and development of this phrase,then we research its development. We summarize its developing process from Qing dynasty to modern times and predict its developing tendency as a whole on the statistics of its development.

本文从共时和历时两个角度对"V+个+VP"进行描写、分析和解释：在共时平面上对"V+个+VP"动补结构的表层句法结构、深层语义关系及外部语用功能进行从点到面的详尽描述，并从多个角度将其与"V+得+VP"结构的异同进行对比，最后综合运用焦点理论及韵律学原则分析解释其承担的语用功能；在历时平面上探究"V+个+VP"短语的来源及发展概况，对"V+个+VP"的发展情况进行考察统计，对其从清代到现代的发展情况加以总结，并从总体上概括了"V+个+VP"短语的发展趋势。

The relationship between the boiling point, flashing point and molecular structure of 30 halogenated benzenes and halogenated benzaldehydes was studied by using quantitative structure-property relationship technique. The result indicated that there was significant correlation between boiling point, flashing point and the group dyeing index of halogenated benzenes and halogenated benzaldehydes.

运用定量结构－性质相关技术研究了30种卤代苯、卤代苯甲醛化合物的沸点和闪点与分子结构间的定量关系，结果表明，卤代苯和卤代苯甲醛的沸点和闪点与基团染色指数具有显著相关性。

This article discusses four factors of inditing exordium of Tolstoy s works: a the focusing point of implying the main line of a novel; b the entering point of accepting the historical background; c the flashing point of exposing the author s inclination ; d starting point of identifying the artistic style.

本篇着重研究了托尔斯泰开端创作的四个方面：一、隐示作品主线的聚焦点；二、接纳历史背景的切入口；三、透露作者倾向的闪光点；四、确定艺术风格的起程点。

B using press-volume technique, this paper studied the seasonal changes of water potential at saturated point (Ψ, water potential at turgor loss point (Ψ relative osmotic water content at turgor loss point ROWC(superscript thp, relative water content at turgor loss point RWC(superscript tlp, relative content of apoplastic water, bound water/free water V(subscript a/V, and the difference between (Ψ and (Ψ of Reaurnuria trigyna growing on heavy solonchack, non-salinized soil, and saline soil.

运用压力容积技术，研究了4种盐分生境下长叶红砂饱和含水量时最大渗透势Ψ(上标 sat 下标 s、初始质壁分离时的渗透势Ψ(上标 tlp 下标 s初始质壁分离时渗透水相对含量ROWC(上标 tlp、初始质壁分离时的相对含水量RWC(上标 tlp、质外体水的相对含量、束缚水与自由水的比值V(下标 a/V，以及饱和含水量时最大渗透势与初始质壁分离时的渗透势之差的季节变化。

The changes of freezing point and super-cooling point of a series of PM vitrification solutions was investigated in the process of slow freezing at a ratio of 5℃/min. This experiment showed that the vitrification solution over 41% had not freezing point, while the vitrification solution under 40% had freezing point and could ice.

对PM系列玻璃化液在5℃/min慢速降温过程中冰点、过冷点的产生和变化进行研究，发现浓度在41%以上的玻璃化液降温时不产生冰点结晶，而40%以下玻璃化液在慢速降温时在冰点出现了结晶。

Effect of cerium on the ignition point of AZ91D magnesium alloy;2. Probe to the definitions of ignition point and self- ignition point and their relation;3.1 could reduce the carbon ignition point to 380 ℃ and was of a remarkable.

1制备的催化剂能使碳的起燃点降低到380℃左右，且去除碳效果明显，在此基础上，减少钾的含量或增加钙的含量，都会使催化剂的活性有所降低。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。