研制了一种钇基重稀土变质剂.A new type of Y base heavy rare earth modificator was developed.介绍了一种新型复合变质剂及其变质工艺.The paper introduces a new type composite modifier and modification technology.变质剂对低合金白口铸铁的组织结构具有显著的影响.The structure of low...
A volcano spouts flame and lava.火山喷出火焰和岩浆.The main square has a fountain that spouts water 40 feet into the air.主广场有个喷泉，能将水喷射至40英尺高的空中。The fountain spouts water into the air.喷泉的水喷入空中....