There are three basic classifications of technological progress: neutral, labor saving, and capital saving.
技术进步有三个基本类型：中间型、劳动节约型和资本节约型。
The utility model has advantages of reasonable structure and safe operation as well as labor-saving.
本实用新型具有结构合理，使用安全，操作省力等优点。
The utility model has the advantages of simple operation, labor saving and high efficiency.
本实用新型操作简单、省力、效率高。
The utility model has the advantages of simple operation, labor saving and high efficiency.
本实用新型操作简单、省力、效率高。
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