Word: 原理 (yuánlǐ) 原理 dictionary entry yuánlǐ principle; theory Full dictionary entry for 原理 Example sentences using 原理 2 sentences, showing page 1 of 1. 你能解释这台机器的工作原理吗? Nǐ néng jiěshì zhè tái jīqì de gōngzuò yuánlǐ ma? Can you explain the working principle of this machine? 请你查一下这个效应的原理。 Qǐng nǐ chá yíxià zhège xiàoyìng de yuánlǐ. Please look up the principle behind this effect.