可部分替代传统的等温退火作为轴承套圈毛坯的预先热处理.
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A swift rose soundlessly over the slate roof and the heat shimmered on the roughcast walls.
一朵怒放的玫瑰在石板屋顶无声无息,亮光在粗糙的墙壁上闪烁.
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By this technology it can achieve rapid foundry of glass mould's roughcast.
用这种工艺可以实现玻璃模具毛坯的快速铸造.
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