The results showed that nonmetallic inclusions in weld seam served as crack initiation site under external bend load, and large amount of m a structure resulted in cleavage fracture of weld seam.
结果表明，焊缝金属中存在的非金属夹杂物，在低应力作用下形成微裂纹成为裂源，加之焊缝组织中存在大量的MA结构群，从而发生焊缝金属在室温下的解理断裂。
The cleavage of the azo bond is the limited step of the mineralization processes because of the low oxidation-reduction potentials and complex structure.
由于染料分子较低的氧化还原电位，复杂的结构和空间阻碍使得还原断键反应成为偶氮染料整个矿化过程的限速步骤。
On the surface of some jade ornament or crystal with coarse grain structure, the microscopic fissure can be formed along the cleavage.
在有些结晶颗粒较粗的翡翠饰品表面，硬玉晶体上可见沿解理形成的微细裂纹。
On the surface of some jade ornament or crystal with coarse grain structure, the microscopic fissure can be formed along the cleavage.
在有些结晶颗粒较粗的翡翠饰品表面，硬玉晶体上可见沿解理形成的微细裂纹。
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