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Plane analytic geometry is a important content in the mathematics curriculum of high school, which embodies powerful function of analytic method and algebraic method in the depicting curve. It reflects important idea of the combination of number and figure. Learning the course is very important for students to improve mathematics thought ability. Teachers and students are engaged in teaching and learning by the textbook, so it is necessary to analyse plane analytic geometry textbook.

平面解析几何是高中数学课程中的重要内容之一，它体现了解析方法和代数方法在刻画平面曲线方面的强大作用，反映了数形结合的重要思想，学习这部分内容对提高学生的数学思维能力具有十分重要的价值，师生正是通过教材这一载体从事教学和学习活动的，因此，很有必要对平面解析几何教材进行分析。

This powerful algebraic structure with its finiteness makes itself a concise and beautiful subject of study in the mathematical world.

这种强有力的代数结构再加上有限性这一条件使它成为数学领域中一种简洁、美妙的研究对象。

One of the most powerful security officials in Algeria has been shot dead in his office in central Algiers.

阿尔及利亚最有权势的安全官员之一在阿尔及尔中部他的办公室被枪杀。

Insist to use hot bath sufficient can break up algidity, warm whole body; Blood of stimulative the whole body circulates, eliminate exhaustion in time; After moving in the morning, wash with hot water sufficient can powerful body of be good at head, wash with hot water before night retire for the night sufficient can rise Morpheus Quality; Iron with hot water sufficient still be helpful for treating ringworm of the foot.

坚持用热水洗足可以驱散寒气，温暖全身；促进周身血液循环，及时消除疲劳；早上运动之后用热水洗足可以健脑强身，夜晚就寝以前用热水濯足可以提高睡眠质量；用热水烫足还有利于治疗脚癣。

It also contains powerful Fucoidan, Laminarin and Alginate compounds, which are not found in land plants.

它也包含了强大的褐藻多糖，海带多糖和藻酸盐的化合物，这是不存在于陆地植物。

Chief Powhatan was a powerful chief of the Algonquin tribe .

波厄坦是艾尔冈昆部落的首领。

Birch Reduction, one of the most powerful synthetic methodologies available to organic chemists, provides a bridge between aromatic and aliphatic compounds and makes a huge arsenal of aromatic derivatives readily available for construction of alicyclic molecules, which are possibly converted into various natural products.

Birch还原是联接芳香族和脂肪族化合物的桥梁，它使许多芳香族衍生物成为合成脂肪族化合物，尤其六元脂环天然产物的起始原料，因此Birch还原是有机合成中很有用的方法。

It provides powerful tools to anticipate and align the right mix of physical and virtual IT resources to meet business demands, and assess IT performance and costs across your infrastructure.

它为预测和把正确混合的实物和虚拟的IT资源连成一线从而符合商业的需求、评估IT性能和你基础设施的所花费的费用提供了强有力的工具。

GFP gene eukaryotic express plasmids were transfected into ES cells. The cells were observed under the inverted fluorescent microscope. The clones which expressed the powerful green fluorescence were chosen to be named ES-GFP cells and cultured continuously. The examination of ES cell totipotent including Alkine phosphatase staining, embryonic body formation in vitro and teratomas formation in nude mice was implemented.

1。采用脂质体方法将GFP质粒转染ES-D3细胞株，经筛选后倒置荧光显微镜观察细胞形态及荧光状态，挑取荧光最强的克隆，命名为ES-GFP细胞，进一步扩增培养，观察细胞生长及荧光表达情况，行细胞分化全能性鉴定包括碱性磷酸酶（alkine Phosphtase，AKP）染色、体外胚胎体（embryonic body，EB）形成实验及裸鼠体内成瘤实验。2。

That makes it one hell of a powerful tool, and yet all too often we completely forget about it.

这使一个地狱的一个有力工具，但往往我们完全忘记了。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。