Dispersed shrinkage is the main reason causing leakage of multi-cylinder heads of diesel engines.

缩松缺陷是导致多缸柴油机缸盖铸件渗漏的主要原因。

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Foundrymen have maken a lot of research works to shrinkage and dispersed shrinkage, and gained important success during the past few years.

多年来，铸造科技工作者对缩孔和缩松进行了大量研究工作并取得重要成果。

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Foundrymen have maken a lot of research works to shrinkage and dispersed shrinkage, and gained important success during the past few years.

多年来，铸造科技工作者对缩孔和缩松进行了大量研究工作并取得重要成果。

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