white layer短语¹⁴⁴⁹⁷²⁺² 基本例句 白色亮层 The rapid propagation of these cracks along the white/span> layer can develop brittle delamination of white layer. 裂纹在白层内的快速扩展造成表面白层的脆性剥落。 cnki In the process, a white layer would rise from drawing. The white layer, which is very thin and hard, often lead to surface crack and even breakage of wire or rod. 在这种加工艺中,会出现一种表面因拉拔而产生的白亮层,这一白亮层很薄,但硬度很高,常常引起拉拔件表面开裂,有时甚至会引起拉拔件断裂。 chinamet