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汉语拼音：duàn kǒu

矿物的破裂面。不同的矿物有不同形状的断口，可以利用来鉴定矿物的种类。

1. 肢体被截断后的创口。

   郭沫若 《一只手》二：“右肘的断口上，鲜红的血仍然在不断地流。”

2. 矿物的破裂面。可按其不同形态来鉴定矿物的种类。

• This is confirmed by SEM that it is caused by corrosion fatigue.

  经扫描电镜断口分析确认,是腐蚀疲劳所致.

• SEM corrosion structure and SEM appearance of fracture were observed.

  观察了热压烧结SEM腐蚀组织和SEM断口形貌.

• Pattern recognition of fractographs is very important for analysis of fracture surface.

  断口形貌模式识别的工作对断口分析有着重要的意义.

• Fracture measurements show that the mode attributed to cleavage fracture.

  断口实验结果表明,接头断裂模式为解理断裂.

• Sintering temperature has also great influences on fracture characteristic and properties.

  烧结温度对断口形貌和力学性能也有较大影响.

• With increasing hydrogen content , the fracture characteristics from dimple to quasi - cleavage.

  随着原始氢浓度的提高,含氢裂纹体的断口形貌逐渐由韧窝向准解理过渡.当原始氢浓度为79.19ppm时, 断口形貌已全部为准解理.

• The fracture of K 1 c and impact specimens were observed by SEM.

  通过扫描电镜观察了断裂韧性和冲击试样断口.

• The tensile fracture surface has obviously characteristic of hydrogen brittle.

  拉伸断口亦以有明显的氢脆特征.

• The higher temperature is, the more the corrosion product is.

  随着试验温度升高, 断口上的腐蚀产物增多.

• The fracture mode of SPS sintered molybdenum belongs to brittle intercrystalline fracture.

  SPS烧结钼的断口呈沿晶断裂,属于脆性断裂.

• Whereas the alloy with low Na content exhibited ductile fracture with dimples.

  而钠含量较高的合金发生韧性断裂,断口为韧窝型.

• Quenching crack deep and long, straight fracture , fracture surface without oxide color.

  淬火裂纹深而细长, 断口平直,破断面无氧化色.

• The tesile fracture is mixture of quasicleavage and touph dimple.

  拉伸断口为韧窝和准解理混合断裂.

• Layered fracture occurs after tensile test of high strength ship plate.

  高强船板拉伸试验后出现断口分层现象.

• The unhealed porosities might be a possible source of flake formation.

  这种空隙很可能是白点断口的一种断裂源.