The scratch depth of the BCN film increased with the increasing of the loads. Coefficient of friction of the film was about 0.1 before fracture,but increased quickly to 0.46 after fracture.是什么意思_The scratch depth of the BCN film increased with the increasing of the loads. Coefficient of friction of the film was about 0.1 before fracture,but increased quickly to 0.46 after fracture.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句