您要查找的是不是：
- The design of an airborne off-set parabolic reflector antenna with low sidelobes is discussed. 介绍了机载雷达低副瓣偏馈抛物面无线的设计。
- The emphasis in this paper was corner reflector antenna with high-gain, narrow beam and low side-lobe. 选用方向性好、增益高、旁瓣低的角形反射器天线作为本论文的研究重点。
- Cassegrain dual reflector antenna for UWB high power microwave[J]. 引用该论文 廖勇;谢平;陆巍;陈志刚;杨周炳;孟凡宝;周海京.
- Low noise, libration, power consuncption. 整机噪声小、振动小、功耗比小。
- It makes the engine run smoothly under low noise. 实际应用中,体现发动机运转平稳,噪音低。
- Structure of very low noise level. 低噪音结构。
- Headstock gears ground with low noise. 主轴箱齿轮精密磨削，噪音低。
- Powerful wind-force.It runs with low noise. 强劲风力,运转平静,低噪音。
- Features: Low current, low voltage，low noise. 特点:低电流，低电压,低噪声。
- Assembled low noise and long life fan. 装配低嘈音及长寿排风扇。
- A monopulse reflector antenna with an illuminator of six elements circular array is studied. 该文研究了一种以六单元圆形阵列作为照射器的单脉冲抛物面天线，这种天线具有实现宽频带跟踪的独特优点，其输出信号类似于圆波导单口径多模馈源，具有一个和波束，一个锥形差波束，并给出了没有接收机参与的情况下，将宽频带的和差两个通道变成单通道的途径。
- Purpose: Low noise audio amplifier applications. 用途:用于低噪声音频放大。
- Moreover, the radiation field of the distorted reflector antenna is calculated by the physical optics method. 在此基础上，通过使用物理光学法直接计算出变形反射面天线辐射场。
- Finally, a series of experimental studies is made on the proposed polarization-agile active microstrip antenna witha low noise amplifier (LNA). 第四，完成了独创的具有极化捷变功能并带有低噪声放大器(LNA)的有源微带天线阵的设计与研制，并进行了一系列实验2000年上侮大学博士学位论文研究。
- Main drive is votrolled by immersion method cluth with low noise. 油浸式无间隙高精度齿轮传动箱、噪音极小。
- The backfire characteristics of a monofilar helix and the radiation characteristic of the paraboloidal reflector antenna with a backfire helical feed operating at C band are studied. 研究了C波段单线背射螺旋的背射特性及其作为抛物面馈源的辐射特性。
- High Speed, Low Noise, Single Supply CMOS Operational Amplifier. 高速低噪声单电源CMOS运算放大器。
- High output level, low noise and low non-linear distortion. 输出电平高,低噪音和较小的非线形失真。
- The average power pattern of the Side-Fed Offset Cassegrain(SFOC) dual reflector antenna is analyzed,and the effect of the random surface error on radiation characteristics of the antenna is addressed. 以侧馈偏置卡塞格伦双反射面天线为对象;通过数值计算方法分析了该天线的平均功率方向图;研究了反射面随机表面误差对天线辐射特性的影响.
- One inlet outlet low noise pulley exhaustion respectively. 进排低噪音滑轮抽气各一台。
- 今日热词
-
- 深远海浮式风电平台 - deep-sea floating wind power platform
-
- 京雄高速公路 - Beijing-Xiongan expressway
-
- 农业及相关产业增加值 - the added value of agriculture and related industries
