灰口铁--一种铁碳和硅的合金；易于铸造；在铸态下具有很好的压力紧固性。
Gray iron--an alloy of iron carbon and silicon ; easily cast; good pressure tightness in the as-castcondition.
然后重铸并扩展你的梦想，你会发现，你的恐惧在这种情况下很快消失。
Then recast and expand your dream and you may discover that your fears rapidly dissipate as such.
实验结果表明，热处理能改善铸态下制得的铝硅基复合材料显微组织形态。
The results have shown that heat treatment can improve the microstructure of the Al-Si base composite manufactured under case condition.
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