The result shows that the coefficient of friction of GCr15 steel ring against nano-ZrO2 ceramic block is 37.3% less than that against 45# steel block, the wear weight loss of nano-ZrO2 ceramic block is only 0. 76% of that of 45# steel block.是什么意思_The result shows that the coefficient of friction of GCr15 steel ring against nano-ZrO2 ceramic block is 37.3% less than that against 45# steel block, the wear weight loss of nano-ZrO2 ceramic block is only 0. 76% of that of 45# steel block.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句