Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/71d37ba588f95685438d74496ffcc5b9.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 hypoeutectic例句_hypoeutectic英汉例句_hypoeutectic双解例句_按摩法牛津词典
Five series ductile iron elements of hyper eutectic, hypo eutectic, eutectic have been tested using color metallograph method. 利用彩色金相对过共晶和亚共晶球铁磨球五组试样进行了试验对比。