high pure Al alloy的用法和樣例：
例句
- The driver chassie is a pure aluminum die cast contruction with an acoustically transparent design.
驅動器底座為純鋁鑄結構，採用透聲設計。 - Mixed RE elements could improve the conductivity of pure aluminum with relatively high content of impurities, but had little effect on that with relatively low impurity content.
混合稀土對雜質含量較高的純鋁的導電性有改善，對雜質含量低的純鋁的導電性基本不起作用。
