发生中的

Based on the principle of mass-changing mechanics,this paper analyzes the process of water wheel raising water,educes its movement differential equation s in its three stages from starting to stable running,obtains solutions of the equations,and calculates on the angular velocity of the waterwheel in constant motion.

应用变质量力学原理对农用水车在提水过程中所经历的三个不同阶段，即在运动过程中水车的受力和运动量都在发生变化的情况下，对其动力学问题进行了较为深入的分析，导出了水车由起动至稳定运转三个阶级的运动微分方程，并得到了它们的解答，进而求得水车在趋于定常运动时的转动角速度。

Maui Wowee is loaded with over 200 levels of play and a seemingly endless amount of features! Equally exciting, the Media Player component lets users listen to their own music while they play. This game sports a fully-customizable screen saver, a level editor that allows players to build their own levels, and Swap Mode for those who just can't get enough classic swapping action.

画面非常精美的消除类游戏，游戏中把花圃内三个以上的相同花朵连成一线即可进行消除，花朵所在的这块棕色土地也会随之变色，而当同一块土地发生消除的次数越多，土地就会变成银色、金色，最后得到的分数也就越高，当花圃内全部土地都变色后即可过关，结算分数时，会根据你的得分解锁更多的蝴蝶、树木、花朵、用来在屏保模式中进行自编辑。

After injury 5d-7d, the protein expressed strengthly. Conclusion The stage of the VEGF expression at maxillofacial blast injury is similar to the angiopoietic stage during wound healing, and the Flt-1 expression is also occurring at that period.

VEGF在颌面部爆炸伤后的表达与创伤愈合过程中新生血管形成的时间相似，其受体Flt-1的表达也多发生于此时期，说明VEGF参与调节了创伤愈合过程中的血管再生阶段，对毛细血管的发生有积极促进作用。

After injury 5d-7d, the protein expressed strengthly. Conclusion The stage of the VEGF expression at maxillofacial blast injury is similar to the angiopoietic stage during wound healing, and the Flt-1 expression is also occurring at that period. It illustrates that VEGF take part in angiogenic cascades of traumatic wound healing and product auxo-action to the regeneration of blood vessel.

VEGF在颌面部爆炸伤后的表达与创伤愈合过程中新生血管形成的时间相似，其受体Flt-1的表达也多发生于此时期，说明VEGF参与调节了创伤愈合过程中的血管再生阶段，对毛细血管的发生有积极促进作用。

The test results showed that under low ambient temperature and aphotic storage conditions jet fuel exhibited good color stability.Oxidation reactions,such as photo-catalyzed oxidation and radical oxidation,were the main reaction mechanism of color degradation,and copper played an important role in catalyzing the oxidation reactions.Under static thermal stability testing condi...

试验结果表明，喷气燃料在较低温度、无光储存条件下具有很好的颜色安定性；氧化反应是导致喷气燃料颜色变深的主要反应机理；静态热安定性试验条件下，喷气燃料的颜色随氧化时间呈相对稳定的加深趋势；氧化铝吸附脱除了喷气燃料中的一些原有氧化抑制剂，使喷气燃料在较高温度、有氧条件下易于发生氧化反应；铜在喷气燃料氧化变色反应过程中具有明显的催化作用。

Pleuropulmonary blastoma is a rare pediatric lung tumor that is often part of an inherited cancer syndrome.

据6月26日的《科学》杂志报道说，影响某种蛋白的基因变异在RNA干扰中扮演着一种关键性的角色，这些变异与发生在幼童中的一种罕见形式的肺癌有关。

In order to preserve the varieties of the swarm and avoid to be in premature convergence,a Particle Swarm Optimization algorithm based on the differential evolution mutation is proposed.The new algorithm uses the particle aggregation quality to judge that if the particles in the swarm are congregative so much,then apply the differential evolution to mutate the self prevenient best position of each particle,in order to realize the aim of preserving the varieties of the swarm.

为了保持粒子种群的多样性而避免发生&早熟&的问题，提出一种基于差异演化变异的粒子群优化算法，该方法通过粒子聚集性判断如果粒子群中的粒子过于聚集，则使用差异演化算法对PSO算法中各个粒子的自身历史最佳位置进行变异，以实现保持粒子群种群多样性的目的。

There is n strong association of PFO with paradoxical embolism and ischemic cerebral infarction, and reports on patients with PFO-related cryptogenic stroke after coronary artery bypass grafting and various surgical cases of heart or lung are being increasingly published in recent years.

近年来的研究发现，卵圆孔未闭的存在与反常栓塞、缺血性脑卒中的发生密切相关，与冠状动脉旁路移植术及各种心、肺手术后不明原因的卒中或猝死相关的报道日益增多。

There is a strong association of PFO with paradoxical embolism and ischemic cerebral infarction, and reports on patients with PFO related cryptogenic stroke after coronary artery bypass grafting and various surgical cases of heart or lung are being increasingly published in recent years.

近年来的研究发现，卵圆孔未闭的存在与反常栓塞、缺血性脑卒中的发生密切相关，与冠状动脉旁路移植术及各种心、肺手术后不明原因的卒中或猝死相关的报道日益增多。

Ozone easily sets off a chemical reaction with the lipoprotein of the cytoderm in bacteria or sets off a chemical reaction with phospholipid, protein in the epicyte , so that the cytoderm of the bacteria and the cells are destroyed, and the permeability of the epicyte improvesm, the matter in the cells flows out and loses the activity.

臭氧很容易同细菌的细胞壁中的脂蛋白或细胞膜中的磷脂质、蛋白质发生化学反应，从而使细菌的细胞壁和细胞受到破坏，细胞膜的通透性增加，细胞内物质外流，使其失去活性。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。