1. 半抗原，不全抗原一種對某種特定的抗體起反應(yīng)但除非被限制于蛋白質(zhì)載體或其他分子之中，否則不能導(dǎo)致抗體的構(gòu)成的物質(zhì)
   A substance that reacts with a specific antibody but cannot induce the formation of antibodies unless bound to a carrier protein or other molecule.
2. 在通信技術(shù)中，通過公共載體將電路的輸出部分返回到電路的輸入部分的一種連接。
   In communications, the connection, by a common carrier, of the output portion of a circuit back to the input portion of a circuit.

體的英語翻譯：