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the manual nn as a highly integrated chiasma subject. most of models about nn are adopting the bp network and the changed form at the practical appliance, which is also the hard core of forward network, incarnating the essential part of nn.

人工神经网络作为一门高度综合的交叉学科，在实际应用中绝大部分的神经网络模型是采用bp网络和它的变化形式，它也是前向网络的核心部分，体现了人工神经网络最精华的部分。

The spatial pattern of man-made natural desert landscape is not only affected by desert itself and also by human disturbances obviously.

人工—自然荒漠景观的空间结构受其沙漠背景的强烈影响，同时受强化了的人工干扰的影响，其格局带有明显的人为作用。

Different sacral nerve roots have different dominative effects to bladder smooth muscle. It is meaningful for patients of spinal cord injury to improve their urination function by performing artificially electric stimulation for emiction through the main nerve roots controlling of bladder or rebuilding artificial bladder reflex arc by neurorrhaphy

不同的骶神经根对膀胱平滑肌的支配效能不同，利用膀胱平滑肌的主要支配神经根进行人工电刺激排尿或通过神经吻合重建人工膀胱反射弧，对提高脊髓损伤患者的膀胱排尿功能有一定的意义。

Taking the fishery stocks status of no-overfishing in the coast of Guangdong in 1964～1965 as stock structure in good condition, according to the result of background survey of 16 artificial reefs area of Guangdong during 2002～2004, the historical change of stock structure of the coast of Guangdong had been studied, combined with some relative data, the species of enhancement for the artificial reefs area of Guangdong were put forward to choose: 38 species of fish, 13 species of shrimp, 4 species of lobster, 5 species of crab, 18 species of shellfish, 8 species of holothurian, 27 species of seaweed.

以1964～1965年广东沿海没有捕捞过度的渔业资源状况作为处于良好状态的资源结构，根据2002～2004年广东16个人工鱼礁区的渔业资源本底调查结果研究了广东沿海渔业资源结构的历史变动，结合有关资料，提出了广东人工鱼礁区可供选择的增殖放流种类为：鱼38种、虾13种、龙虾4种、蟹5种、贝18种、海参8种和海藻27种。

Constructed wetlands are artificial wastewater treatment systems which contain physical, chemical and biological process in the ecosystem, and treat wastewater efficiently according to filtration, absorption, deposition, hydronium exchange, as well as microbe decomposition.

人工湿地是，是由人工建造、监督和控制的，它充分利用湿地系统净化污水能力的特点，利用生态系统中的物理、化学和生物的三重协同作用，通过过滤、吸附、沉淀、离子交换、植物吸收和微生物分解来实现对污水的高效净化。

The present state of artificial joint material research and joint market demand were described.The development of the β titanium alloys with high strength,plasticity and low Young′s modulus has become the focus of artificial joint material.

讲述了目前人工关节的市场需求情况及人工关节材料的研究现状，提出开发强度高、塑性好、弹性模量低的β型钛合金成为各国研究的重点，同时开发出了具有自主知识产权的近β型钛合金TLM(Ti-Zr-Sn-Mo-Nb)。

Using an improved genetic algorithm combined with a BP algorithm a new method IGA-BP,QSAR model was developed that links molecular structures of a set of 50 alkylated and/or halogenated phenols with their polar narcosis toxicity.

采用改进的遗传算法和BP人工神经网络相结合的方法，研究了50个酚类化合物的麻醉毒性和分子结构之间的相关性，并与单纯用BP人工神经网络建立的模型进行比较。

Besides, the purpose of ECC, ECMO, IVOX and TAL, advantage and disadvantage, newest research progress of the oxygenator are introduced. The aspects of IVOX and TAL can be modified, and the significance of TAL as to be the real artificial lung is pointed out.

从体外循环、ECMO、IVOX和TAL 4个方面的用途及各自的优、缺点论述了膜式人工肺的研究进展，分别归纳了IVOX和TAL需要改进之处，并特别指出TAL作为真正意义上的人工肺的重要性。

The natural epoxy wax is the one or two wax within which the fatty acid and phytol chain that has one epoxide group at least naturally, while the wax made artificially is the one that has one or two fatty acid and phytol chain transformed artificially to introduce in one epoxide group at least.

天然环氧蜡为其中的该脂肪酸和醇链中的一个或两个天然地包含至少一个环氧基团的蜡。人工环氧蜡为其中的该脂肪酸和醇链中的一个或两个已人工改变以引入至少一个环氧基团。

Although the primary human hepatocytes would be ideal for bioartificial livers, the shortage of hepatocytes and the difficulty to increase the doubling time of human hepatocytes in vitro limit the clinical application.

肝细胞是生物人工肝支持系统的核心部分，从生物工程学角度讲，理想的用于生物人工肝的肝细胞要人源性、表型正常，容易获得和培养，能在体外迅速生长增殖至高密度，保持良好的分化状态，具有成熟肝细胞的所有生物代谢功能。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。