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- Point-to-point communications requires high gain and high directivity antennas. 在点对点无线通讯的系统中,其天线通常要求高增益和高指向性的天线效能。
- Its advantages are simple structure, easy implementation, uniformly distributed light field in cavity, high directivity of laser radiation and small size. 本发明结构简单,易于实施,并能够实现腔内光场较均匀分布及提高激光辐射方向性,能制作成很小尺寸谐振腔的微腔半导体激光器。
- Audio directional loudspeaker is a novel loudspeaker which can generate an audio signal with high directivity by utilizing the parametric array principle. 摘要声频定向扬声器是利用参量阵原理,产生高指向性声频信号的新一代扬声器。
- We only employ 15 pairs of circular holes to gain 3dB coupling at X-band and low input VSWR and higher directivity. 最后,给出了X波段3分贝耦合度的定向耦合器的设计考虑和实验结果。
- According to the analysis of water quality of more than 100 wells,the formation water of the Carboniferous in east Sichuan possesses high density and high direct metamorphic degree. 据100多口井水质分析,川东地区石炭系地层水具有浓度高、正变质程度深的特点。绝大部分地区地层水以氯化钙水型为主,局部存在重碳酸钠和硫酸钠水型。
- Digitized multi-baseline interferometer had the merits of finding direction passively and high direction accuracy. 数字式多基线相位干涉仪具有能被动测向、且测向精度高的优点。
- The conditions of the highly directivity is shown, and numerical simulations are carried out, and then, the radiation pattern and directivity is observed in the certain bandwidth. 本文的第三部分研究了利用线介质来构造高指向天线,并进行了数值仿真,得出其辐射模式并观测某一个带宽内的方向性。
- Conclusion SCTA can not only diagnose cerebral aneurysms accurately but also has high directive value in making therapy plan, surgical preparation and endovascular embolization. 结论SCTA不仅对脑动脉瘤的诊断准确率高,而且对动脉瘤治疗方案的制定、术前准备及血管内栓塞治疗有很高的指导价值。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- Goods of high quality are few and far between these days. 质地精美上乘的物品现在不多见。
- The medieval town was fortified with a high wall and a deep moat. 这座中世纪的城市周围建有城墙和护城河。
- Counters can, of course, be made highly directional by the use of external collimation. 当然可以利用外部准直法来提高计数器的方向性。
- I set a high value on his advice. 我认为他的忠告很有价值。
- Design and Test of High Directivity PVDF Ultrasonic Transducer 声频定向PVDF超声波传感器的设计与测试
- Many competitors have entered for the high jump. 已有许多人报名参加跳高比赛。
- She enjoyed high prestige among the masses. 她在群众中享有很高威信。
- The dresses in the shop are priced high. 这家商店的衣服定价很高。
- The high salary reconciled me to living abroad. 我为获高薪也只好在国外生活。