The error between S_k calculated using the viscous flow formula and S_v increased with the decrease of the particle size of powder and with the decrease of the bed porosity.是什么意思_The error between S_k calculated using the viscous flow formula and S_v increased with the decrease of the particle size of powder and with the decrease of the bed porosity.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句