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Founded in 1996, it has supplied equipments and technology support to hundreds of large or medium analogic/digital TV systems. Beijing Pace has always devoted itself to promote the development and application of high-level technology and products in professional field.

公司于1996年成立，十余年来已经成功地为国内近百个大中型模拟/数字有线电视系统提供成套设备和技术支持服务，始终致力于促进高端技术和产品在专业领域中的推广和应用。

SaiMei mainly deals in all ranges of hardware fittings with advanced technology and equipments e.g. slotted angle, shelving, bracket, belt steel, steel pipe, laminate, galvanized steel plate, galvanized steel pipe, TV shelf, warehouse shelf, nails, wire, wire net, furniture, section steel, ect. The technology in steel rolling, auto pressing, moulding, surface treatment keeps ahead of the world.

公司主营万能角钢、货架、支架、电视架、仓储货架、置物架、优质带钢、钢管、层板、镀锌钢板、镀锌钢管、钉子，铁丝，铁丝网、家具、型材等五金制品，技术力量雄厚、生产设备先进，其中轧钢镀锌、自动冲压、滚压成型和表面处理等技术领先世界水平。

This thesis introduces the research history of sonoluminescence, the properties and equipments of single-bubble sonoluminescence and the factors affecting the amount of light emission. Based on the experimental realization of SBSL, the experiment in this thesis is to confirm the coherence between the emitting frequency and the driving cycle of SL. Under this feature ,we established the programme of the experiment that measure the angular correlations in SBSL , built the experimental devices and conducted initial measurements .Then we got the conclusion that there is a presence of non-spherical symmetry in the process of SBSL .

本文介绍了声致发光的发展历史，对单泡发光的特性和实现声致发光的设备进行了描述，对影响发光强度的要素做了概述；并在实现单泡声致发光的基础上通过实验验证了单泡声致发光的发光频率与驱动超声频率具有一致性的特点，根据这一特点确立了声致发光角分布测量的实验方案，建立了实验装置，并进行了初步测量，得到在声致发光的过程中存在着非球形对称状态的结论。

A ship course controller is designed for Norrbin nonlinear ship mathematical model with matching uncertainty. Combining the backstepping algorithm with the nonlinear damping algorithm to design controller, the nonlinear damping is used to cancel the uncertainty. The integral item is introduced in the design to improve the performance of the controller. Now, general ships can only use the electric gyrocompass to measure the course angle, but they have no equipments to measure the angular velocity, so in this article another ship course controller of output feedback is designed for Norrbin nonlinear ship, firstly the angular velocity is estimated by the observer and then the ship course controller is designed.

本文基于含有匹配不确定项的Norrbin非线性船舶数学模型，将backstepping算法和非线性阻尼算法相结合设计船舶航向控制器，利用非线性阻尼来抵消系统的不确定项，同时为了更好地改善系统的性能，在设计过程中引入了积分项；由于目前一般船舶只有电罗经用于测量船舶的航向角，还没有测量船舶航向角速度的设备，因此，针对Norrbin非线性船舶模型设计了一种输出反馈控制器，首先利用观测器对船舶航向角速度进行估计，然后再设计船舶航向控制器。

With annal capability of80000 t molten steel and10000 t steel casting, our company can make full use of vacuum refining furnaces, large size heat treatment furnaces and heavy duty rough machining equipments, our developing aim is to make larger size, more precision and specialized products.

我厂具有年产8万吨钢水、万吨铸钢件能力，充分利用真空精炼、型热处理炉、型粗加工装备，产品向做大、精、专方向发展、大的一次钢水量268吨，最大生产锻造钢锭143吨。

This electric power business enterprise and the anti- that expect to develop at that time are antebellum to compare, all having a very huge development and progress in the business enterprise scale, equipments, technique, management etc.

这一时期发展起来的电力企业与抗战前相比，在企业规模、设备、技术、管理等方面都有很大的发展和进步。

By testing and debugging the system, it comes to the anticipant desire, and it can satisfy the mostly medium enterprise'PCBA testing in portable equipments.

通过对大量PMN设备的实际测试，表明该系统设计达到了预期的要求，能满足大多中小企业的手持式设备的PCBA测试需求。

Sichuan gas field is the typical sour gas field of our country,which corrosion and antisepsis problem of equipments and pipelines have been an important research topic.

四川气田系我国典型的含硫气田，设备及管道的腐蚀与防腐问题一直是一个重要的研究课题。

Along with science technical progress and developments, aircraft is just towards the high dependable, high technique direction development, and the antiskid brake system is an important machine of airplane to carry the equipments, as to it s design the request is also more and more high.

中文摘要：随着科学技术的进步和发展，飞机正朝着更安全、高可靠性、高技术方向发展，防滑刹车系统是飞机重要的机载设备，对其设计要求也越来越高。

More than 5 years of sales on AOI or SMT equipments and knows customers in China.

五年以上AOI及SMT设备销售相关经验，了解中国市场客户

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"