切點: point of contact; point of t ...線: thread; string; wire切點: [數學] point of contact; point of tangency點線: dotted line◇點線表示法 point representation; 點線信號 [訊] busy-back signal互切點: tacnode會切點: cusp交切點: intersection; meet剖切點: cut point切點弦: chord at contact; chord of contact上切點: incision superius吻切點: osculating point冰點線: freezing point line; freezing-point line打點線: milgraining點線筆: dotting pen; drops pen點線的: dotted點線法: point method點線焊: stitch-and-seam weld點線機: roulette點線輪: trace wheel點線器: dotting instrument頂點線: apex string沸點線: boiling point curve拱點線: apse line共點線: concurrent lines; concurrent point; concurrentpoint交點線: line of nodes; nodal line
