The aging treatment had a certain degree of influence on the properties, but the influence was insignificancy.
时效处理对性能有一定程度的影响，但影响不大。
The aging treatment had a certain degree influence on the properties and microstructure of the metal mould casting, but the influence was insignificancy.
时效处理时间虽对铸件的组织和性能有一定程度的影响，但影响不大。
The aging treatment had a certain degree influence on the properties and microstructure of the metal mould casting, but the influence was insignificancy.
时效处理时间虽对铸件的组织和性能有一定程度的影响，但影响不大。
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