Twinnn.特温twinadj.孪生的；紧密联系的n.双胞胎之一twin-targets孪生对靶twin post lift双柱升降机Twin air holes孪生空气孔对twin-H block双工字型大厦twin-cycloneadj.双旋风子的twin-channetadj.双路的；双信道的twin surpluses双顺差twin-crystal孪晶twin saw arbor双锯轴twin polishing双面抛光