东莞建华17-20系列松土器的优点主要包括以下几个方面：1. 高效能：该系列松土器采用高效能的发动机或电动机，功率强大，能够快速、高效地进行土壤松土作业，提高工作效率。2. 省力便捷：松土器采用人体工程学设计，操作简单方便，减轻了使用人员的劳动强度，提高了工作效率。3. 多功能：该系列松土器可根据不同的作业需求进行多种功能的转换，如松土、除草、翻土等，提供了更多的使用选择。4. 耐用可靠：产品采用高强度材料制作，结构坚固耐用，可靠性高，能够在长期使用中保持稳定的性能，延长使用寿命。5. 先进技术：该系列松土器采用先进的技术和设计理念，具有良好的稳定性和可靠性，保证了作业效果和效率。综上所述，东莞建华17-20系列松土器具有高效能、省力便捷、多功能、耐用可靠和先进技术等优点，是农田松土作业的理想选择。

The advantages of Dongguan Jianhua 17-20 series soil looseners mainly include the following aspects: 1. high efficiency: this series of soil looseners adopts high-efficiency engine or electric motor with strong power, which can quickly and efficiently carry out soil loosening operations and improve work efficiency. 2. labor-saving and convenient: the soil looseners are ergonomically designed for simple and convenient operation, which reduces the labor intensity of the user and improves work efficiency. 3. multi-function: this series of soil looseners can be converted into multiple functions according to different operational needs, such as soil loosening, weeding, soil turning, etc., providing more choices for use. 4. durable and reliable: the product is made of high-strength materials, durable structure, high reliability, and can be used for a long period of time to maintain stable performance and prolong the service life. 5. advanced technology: this series of soil looseners adopts advanced technology and design concepts, with good stability and reliability. 6. advanced technology: this series of looseners adopt advanced technology and design concepts. design concepts, with good stability and reliability, to ensure the operating effect and efficiency. To summarize, Dongguan Jianhua 17-20 series of soil looseners have the advantages of high efficiency, labor-saving and convenient, multi-function, durability and reliability, and advanced technology, which are ideal for loosening the soil in farmland.