例句與造句

1. hc-sdma high capacity-spatial division multiple access hc-sdma
   大容量-空分多路存取
2. previous research on the ad hoc network almost aim at omnidirectional antenna of all receivers and transmitters, or as a default attribution . in my thesis, firstly i describe the advantages of the directional antenna at many aspects which including spatial division multiple access ( sdma ), the antenna gain, anti-interference etc . and analyze the possibility about the directional antenna used for the ad hoc networks, secondly i study its multiple access and routine protocols using the directional antenna . and compare the protocol difference and network " performance between omnidirectional and directional antenna in particular environment
   首先闡述了定向天線在網(wǎng)絡空分復用(sdma)、天線增益、抗干擾等方面的的優(yōu)勢，分析了定向天線用于移動自組網(wǎng)的可行性，接著重點研究了基于定向天線的多址接入?yún)f(xié)議和路由協(xié)議，分析了與全向天線在組網(wǎng)和協(xié)議實現(xiàn)中的異同點和優(yōu)缺點，并對特定的環(huán)境下的網(wǎng)絡性能作了對比。
3. It's difficult to find spatial division multiple access in a sentence. 用spatial division multiple access造句挺難的