Weak and soft references both extend the abstract reference class (as do phantom references, which will be discussed in a future article).

弱引用和软引用都扩展了抽象的reference类(虚引用(phantom references)也一样，这将在以后的文章中介绍)。

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I also made abstract sculptures in stoneware clay, I wanted to make soft organic shapes, but with pure soft lines and a minimalist expression.

我还制作了一件抽象的炻器雕塑。我想做出柔和的有机体外形，线条优美简洁并有着极简约的抽象主义表达形式。

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Abstract: for the deficiencies of common grouting technology in deep soft rock roadways, three-step grouting technology is proposed to reinforce the surrounding rock to get better results.

摘要针对深部软岩巷道采用普通注浆工艺的不足，采用三步注浆工艺进行围岩加固，能取得更好的效果。

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