| 1. | High band connector , hundred mega - bit rate 高频带连接器, 100兆比特。 |
| 2. | Uhf band pass filter 特高频带通滤波器 |
| 3. | Vhf bandpass filter 甚高频带通滤波器 |
| 4. | Helical - scan video tape cassette system using 8 mm magnetic tape - 8 mm video - high - band specifications for hi 8 8mm磁带螺旋扫描盒式磁带录像系统. 8mm录像机. hi8高频带规范 |
| 5. | Helical - scan video tape cassette system using 8 mm magnetic tape ; 8 mm video ; part 3 : high - band specifications for hi 8 使用8mm磁带螺旋扫描盒式8mm视频系统. 8mm录像机.第3部分: 8号hi的高频带规范 |
| 6. | Telecommunications - electromagnetic compatibility and radio spectrum matters - radiotelephone transmitters and receivers for the maritime mobile service operating in vhf bands - part 1 : technical characteristics and methods of measurement v1 . 3 . 1 电信.电磁兼容性和无线电频谱情况.工作在甚高频带的海上移动业务用无线电话传送机和接收机.第1部分:技术特性和测量方法 |
| 7. | Finally yet importantly , sctcm is researched which combines sccc with high bandwidth efficiency modular method tcm . besides , the corresponding schemes of encoding and modulating of sctcm , the corresponding demodulating and decoding algorithm , and the performance simulation are also presented 最后讨论了sccc与高频带利用率调制方式结合的sctcm ,研究了适用于sctcm系统的编码调制方案和解调译码算法,并给出了性能仿真。 |
| 8. | Proposed by the european broadcasting union , eureka 147 is widely applied in europe , canada and part of asia . the technology operates in the new l - band or vhf band iii . its 1 . 5 mhz bandwidth can accommodate a maximum of about 1 . 2 mbps of data Eureka147是现时欧洲广播联会( europeanbroadcastingunion )推广的制式,被欧洲、加拿大和部份亚洲地区所采用,它的设计是需要另外在新的L频带或甚高频带vhfbandiii操作,频宽1 |
| 9. | Rthk tested dab in l band in 1998 . since then , dab technologies have undergone improvements ; rthks current test of dab vhf band iii is expected to offer a better indoor and outdoor performance . moreover , the price of the receivers has gone down substantially 港台于1998年测试dab时,是以l频带l band进行,这几年来dab技术上有所改进,今次dab测试极高频带vhf band iii ,相信有较佳的室内和室外接收的效果,而接收器的价格也经已回落。 |
| 10. | The research result demonstrates that along with the increment of reynolds number , the root mean square value of outer fluctuating magnitude of the external diameter in fall frequency band increases , the root mean square value of fluctuating magnitude of the external diameter in high frequency band decreses , demonstrating that the fluctuation of flexible pipe wall changes fluctuation don field of original rigid pipe , large - size eddy motion increases and small - size eddy motion decreases , this reduces energy loss and increases friction reduction effectiveness 研究结果表明:随着雷诺数的增加,全频带的外径脉动的均方根值加大,但高频带外径脉动的均方根值减小,说明柔性管管壁脉动确实改变了原刚性管的脉动流场,大尺度涡的运动加剧,低尺度涡运动减弱,从而使得能量损失减少,减阻效果增大。 |