例句與造句

1. a sheme of two code-rates tcm-qam with high coding gain is presented, its signals space is mapping for 90 rotationally invariant codes ( ric )
   摘要提出了一種適用于慢變通道的雙碼率tcm-qam系統(tǒng)方案，該方案有較高的編碼增益，同時(shí)滿足90旋轉(zhuǎn)不變要求。
2. It's difficult to find invariant codes in a sentence. 用invariant codes造句挺難的