n. 去气；真空除气（黏土材料）
1.The modified zinc alloy has no need of deairing and further refining and can result in the effect of being convenient, power saving and no environmental pollution.
并且在使用过程中无须除气精炼，可以达到方便、节能、不污染环境的效果。
2.The modified zinc alloy has no need of deairing and further refining and can result in the effect of being convenient, power saving and no environmental pollution.
并且在使用过程中无须除气精炼，可以达到方便、节能、不污染环境的效果。