美国《时代》杂志近日评出年度50大发明，榜单被分为“科技产品”、“交通工具”、“健康医药用品”、“生物工程”、“绿色能源”等10个类别。
Time Magazine has released a list of this year's top 50 inventions. The breakthroughs fall into 10 categories, such as technology, transportation, health and medicine, bioengineering and green energy.
挖掘机作为工程机械中的一个重要类别，已经越来越多的投入到工农业生产中。
The excavator is an important category in the engineering machinery, having already thrown in the work in agriculture and industry.
本文就黄土湿陷试验在湿陷类别的判定及其工程中的应用进行深入的探讨，提出了自己的建议和看法，具有一定的参考价值。
The judgment of the collapsibility of loess and its application in engineering are discussed, and the author's own proposals and views are proposed, which have some reference value.
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