three wayadj.三路的threenum.三n.三；三个adj.三个的three - way handshake三次握手Three - axis platform三轴平台three-state condition三态状况three-cylinder engine三缸发动机three-colour printing三色印刷three-in-one system三位一体three-element antenna三元天线three variables control三冲量控制three soft coal roadway三软煤巷three-pin rigid frame三铰刚架