Simulating different solidification cooling rate with step-metal mould and sand mould,the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.是什么意思_Simulating different solidification cooling rate with step-metal mould and sand mould,the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句