本文研究目的是研制用于铝合金挤压铸造的高强度的水溶性盐芯。
The aim of this paper was to develope a sort of high strength salt core used for aluminum alloy squeeze casting.
而且他们想用一种柠檬酸的可溶性盐，他们本可以用钠，也可以用钾。
And they wanted to use a soluble salt of citric acid, so they could have used sodium, they could have used potassium.
介绍盐芯铝活塞概要和一种新型水溶性盐芯成形内冷却油腔的方法。
Salt core Al alloy piston and the new way of shaping cooling channel with water soluble salt core are introduced.
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