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The present invent ion utilizes the top loading technique and the smooth tapering technique to create the design of a compact and built-in antenna which will provide a planar antenna structure with broad bandwidth and high radiation efficiency.
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馈入传输线的宽度大致与渐变带段的底边同宽，且顶边与渐变带段的底边密接，而底边藕接至频电路。 |
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The present invention provides a wideband wavelength converter with four-wave-mixing, which includes a modulated laser diode, a modulator, a first and second polarized controller, a first, second and third tunable lasers, a optical coupler, a SOA waveleng
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本发明系提出一种宽频四波混合波长转换装置，其包含调变雷射光源、光调变器、第一及第二极化控制器、第一、第二及第三可调式雷射、光耦合器、半导体光放大器、及一多工器。 |
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The present invention provides valve prostheses adapted to be initially crimped in a narrow configuration suitable for catherization through body ducts to a target location and adapted to be deployed by state in the target location.
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本发明提供了适合初始褶皱成通过体导管到靶位置的导管插入术窄结构的瓣膜修补物以及适合通过靶位置状态展开的瓣膜修补物。 |
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The present invention teaches a data processing system capable of per forming a sampling frequency conversion.
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本发明系提供一个资料处理系统，能够执行一个取样频率转换。 |
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The present investigation uncovers the detailed binding propensities between metals and alpha-synuclein and has biological implications in PD.
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本研究揭示了金属和阿尔法-突触核蛋白结合倾向的细节，在PD中有生物学意义。 |
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The present is just a cute doll laughing with her two big incisors showing up in the air.
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礼物是一个可爱的玩具娃娃，两颗门牙暴露在空气里特显眼。 |
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The present labor costs are rock bottom.
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现在劳动力的价格是最低的。 |
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The present law makes no provision for this.
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现行的法律对此未作任何规定。 |
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The present macroeconomic deficiency of the mainland China is related to its economical dualistic nature and the reform of the system.
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大陆目前宏观经济需求不足的实质是经济二元结构及其体制变迁。 |
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The present mathematical model is based on the potential wave theory and the mixed Euler-Lagrangian method (MEL) is employed for discretization.
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本文在势波理论的基础上，建立了一个能够精确计算立面二维非线性水波的数值模型。 |
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The present method could make the supporting of roadway surrounding rock safe and economic.
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按最优恒阻支护计算方法设计巷道支护，可以达到经济且安全的最佳支护效果。 |
