例句與造句

1. the gain of the retrodirective antenna in the incoming signal direction fluctuates with ? db as the incident angle increases
   在來波方向上，天線系統(tǒng)的增益隨來波的入射角有fzdb的波動。
2. this dissertation is mainly focused on the key technologies of smart antenna for mobile station : ( 1 ) the electrically small antennas with two ports, ( 2 ) the performance evaluation of smart antenna for mobile station, and ( 3 ) the retrodirective antenna with multi-feed ports
   本文的工作主要圍繞移動臺智能天線的關(guān)鍵技術(shù)進(jìn)行，包括三方面研究內(nèi)容：(1)適用于移動臺的兩端口電小天線；(2)移動臺智能天線的性能評估；(3)多饋電一體化方向回溯天線。
3. It's difficult to find retrodirective antenna in a sentence. 用retrodirective antenna造句挺難的