棱

• Study on the water quality evaluation and classification in the muling river
  穆棱河支流水质评价与水质类别分析
• Terahedral tool maker ' s straight edge
  四棱平尺
• Geometrical product specifications - series of angles and slopes on prisms
  产品几何量技术规范.棱体的角度和斜度系列
• Geometrical product specifications - series of angles and slopes on prisms
  产品几何量技术规范.棱体的角度及斜度系列
• Michele stalens , missing for 6 months , suffers from a rare eye disease
  米谢尔斯塔棱斯,失踪6个月,患有罕见的眼疾
• Continuous wire drawing machines , chamfering machines , cutters share cutters , saws
  连续抽伸机倒棱机切断机面切，线切