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- The design and analysis of a low sidelobe Cassegrain antenna using resistive hyperboloid are presented in detail. The surface resistivity of hyperboloid can be expressed in terms of the target low sidelobe aperture distribution. 本文用沿径向有阶梯变化的表面电阻的双曲面来设计低旁瓣卡塞格伦天线 ,给出了双曲面表面电阻值与所需的低旁瓣口径场分布理论值的关系式。
- The surface, crystalline structure, hole structure and aperture distribution of the microspheres synthesized were characterized by various methods, such as TEM, SEM, UV-VIS, XRD TG-DTA ,BET and nitrogen-adsorption etc. 对所合成的微球用TEM，IR，XRD，UV-Vis，TG-DTA和BET等表征手段进行了表面形貌、晶形结构、孔结构及孔径分布等性质的研究。 结果显示，微球是由十几个纳米的TiO_2晶粒堆积成的多孔微球，微球具有较高的降解活性。
- effective aperture distribution function 有效孔径分布函数
- elliptical aperture distribution 椭圆口径
- The results showed that the aperture distributed of Ti02 porous films by anodic oxidation reduce in evidence, and the morphology of the film was not very good, while add (NH4)2SO4 or (NH4)H2PO4 in the electrolyte, including HF(0.5wt%) only. 实验结果表明: 在单一的HF酸电解液中加入(NH+)2SO4或(NH4)H2PO4 后,阳极氧化生成的膜孔径明显减小,并且膜表面形态较差。
- Error analysis for aperture distribution reconstruction of phased array antenna 相控阵雷达反演口径分布中的误差分析
- The aperture in the door is so wide. 门上的孔隙太大了。
- We saw light through a small aperture in the wall. 我们透过墙上的小孔看到了亮光。
- The distribution of the magazine is 2000. 该杂志的销售量为2000份。
- We have a good product but our distribution is bad. 我们的产品很好,但销售情况不佳。
- The distribution is as tabled below. 其分布情形如下表。
- Motion compensation for aperture distribution reconstruction of phased array antenna 相控阵雷达反演口径分布中的运动补偿
- Azimuth super-resolution for phased array radar by reconstructing aperture distribution 相控阵雷达反演口径分布实现方位超分辨
- An aperture through which matter is discharged. 输出口，喷嘴物体被释放出的开口
- The only light came through a narrow aperture. 仅有的光来自一个小孔。
- After year's end distribution every family of the commune has money to bank up. 在年终分配之后，这个公社家家户户都有钱存入银行。
- Set to the desired lens aperture. 设置所需的镜头光圈。
- Can you please tell me who is in charge of distribution? 能否告诉我哪能一位是销售部门的主管。
- An insulating lining for an aperture through which a conductor passes. 绝缘套管为导体的通过提供缝隙的绝缘套管
- A light came through the narrow aperture. 小孔里透过一缕光线。
