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1.The download rate is 32Mbps when using 64 QAM modulator in 8MHz bandwidth channel.
在CATV网采用64QAM调制技术，每个8MHz带宽的电视频道可提供高达32Mbps的净下行速率。收藏指正
2.By means of digital modulation technique such as 16-QAM, it is possible to transmit all-digital HDTV signals in a radio-frequency channel with base-band of 8 MHz.
应用数字调制技术,如16-QAM,能够实现在一个基带8MHz射频信道中传输全数字化HDTV。收藏指正
3.Methods: Two hundred normal wrists in 100 subjects(50 men and 50 women;mean age 30.2 years;range 19-68 years) were examined with high-resolution sonography (5~12MHz,8~13MHz linear-array transducer) and SUZUKE RSZ 200 X-ray and Philips Infmion 1.5T MRI.
方法 100人200只正常手腕，男女各50人，年龄19～68岁，平均年龄30.2岁。 超声检查选用5～12MHz，8～13MHz线阵扫查探头，X线检查选用日本岛津RSZ-200型1000MA机，MRI检查采用美国PhilipsInfinion 1.5T短磁场机。收藏指正
4.Fruit and conclusion(1)using 100～125 watt shortwave transceiver radio,matching 9 meter whip antenna,at 8～14 MHz frequency,at time of 8～24o’clock,at distance of 0～3000 kilometre the able-calling ratio of the ground-to-air communication is more than 70%;
主要成果是:(1)试验结果——用100～150瓦的短波收/发一体机,配上9米鞭状天线,在8～14MHZ频率时,时间是早8点～夜24点,0～3000公里范围内对空通信的叫通率大于70%;收藏指正
5.We have detected the blood velocity of left carotid artery in 14 cases of neonate HIE and in 8 cases of convalescent neonate pneumonia as control group. The detecting instrument is the Japanese Mino Doppler ES-100X, its frenquency is 2KHz,Power source is 6V, sensor is 8. 2 MHz.
本文应用日本产MinoDopplerES-100X仪多普勒频率为2KHz，电源6V，探头为8．2MHz，对14例新生儿缺氧缺血性脑病（HIE）及肺炎恢复期患者8例（对照组）检测了左颈动脉血流动速度。收藏指正
6.Second harmonic imagings were performed with ATL HDI 5000(1 7/3 4 MHz)or HP 5500(1 8/3 6MHz).
经外周静脉注射微气泡型声学造影剂后用1．8／3．6MHz（HP5500）或1．7／3．4MHz（ATL－HDI5000）行二次谐波成像。收藏指正
7.Realization of 8bit, 80MHz sample/s thermometer-decoded DAC with gradient error compensation
8bit 80MHz采样率具有梯度误差补偿的温度计码D/A转换器实现收藏指正
8.In women the peak values of BUA was 73. 23 8. 34db/MHz, SOS was 1522.97 34. 91m/s, STI was 93. 37 8. 20%.
而女性BUA峰值为73.23±8.34 db／MH_z，SOS峰值为1522.97±34.91m／s，STI峰值为93.37±8.20％。收藏指正
9.METHODS After 30 minutes or 8 hours of 2.5 mHz,8.0mHz ultrasound irradiating the cochlea of guinea pigs(45 ears)for 6 hours,the SDH(succinate dehydrogenase) activity of the stria vascularis was observed.
方法以A型脉冲超声波诊断仪为超声发射器,分别以2.5mHz、8.0mHz超声照射豚鼠耳蜗6.0小时后间隔0.5小时、8.0小时,行豚鼠耳蜗血管纹铺片观察琥珀酸脱氢酶(succinate dehydrogenase,SDH)组织化学观察。收藏指正
10.A 100MHz 2- D 8X 8 DCT /IDCT Processor for HDTV Applications
HDTV采用的100MHz 2-D(8×8)DCT/IDCT处理器收藏指正
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