torus knottorusknot环形: annular; ringlike; ring form ...节: joint; knob; node环形节流器: annular orifice环形节物体: torus knot objectπ形节: pi section; pi-section; π section下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:环形节,即可在微信中查询翻译