沃尔沃EC75DAG挖掘机有以下优点：1. 强大的性能：具备较高的工作效率和大的挖掘力，适用于各种挖掘工作，包括土方、石方等。2. 运转平稳：采用油路挂瓶减震系统，减少了震动和噪音，提供更平稳的操作环境。3. 燃油经济性：沃尔沃EC75DAG挖掘机配备了燃油节能技术，减少了燃油消耗，降低了运营成本。4. 操控简便：采用人性化设计和先进的液压系统，操纵灵活，易于操作。5. 舒适性：宽敞舒适的驾驶室设计，提供了良好的视野和舒适的工作环境，减少了驾驶员的疲劳感。6. 高度可靠性：沃尔沃是一家知名的挖掘机制造商，EC75DAG挖掘机采用了高质量的材料和零部件，具备较高的耐用性和可靠性。7. 维修便捷：设计简单易用的维修点，可以快速进行检查和维修，减少了停机时间和维修成本。总体来说，沃尔沃EC75DAG挖掘机具有强大的性能、运转平稳、燃油经济性、操控简便、舒适性高、可靠性强和维修便捷等优点，适合各种工程环境和挖掘任务。

Volvo EC75DAG excavator has the following advantages: 1. Powerful performance: with high working efficiency and large digging force, it is suitable for all kinds of excavation work, including earthmoving, stonework, etc. 2. Smooth operation: adopting the oil circuit hanging bottle damping system, which reduces the vibration and noise, and provides a smoother operating environment. 3. Fuel economy: Volvo EC75DAG excavator is equipped with fuel saving technology, which reduces fuel consumption and operating costs. 4. Easy operation: adopting humanized design and advanced hydraulic system, which is flexible and easy to operate. 5. Comfort: spacious and comfortable cab design, which provides a good operation cost. 6. The EC75DAG excavator is equipped with fuel saving technology, which reduces fuel consumption and lowers operating costs. 4. Easy Operation: With humanized design and advanced hydraulic system, it is flexible to maneuver and easy to operate. 5. Comfort: The spacious and comfortable cab design provides good visibility and a comfortable working environment, which reduces driver's fatigue. 6. High Reliability: Volvo is a well-known manufacturer of excavators, and the EC75DAG excavator utilizes high-quality materials and components for high durability and reliability.7. Convenient Maintenance: Designed with simple and easy-to-use maintenance points, it allows for quick inspections and repairs, reducing downtime and maintenance costs. Overall, Volvo EC75DAG excavator has the advantages of powerful performance, smooth operation, fuel economy, easy maneuverability, high comfort, high reliability and easy maintenance, which is suitable for various engineering environments and excavation tasks.