三一重工STC250E-1混动版起重机具有以下优点：1. 混动动力系统：采用了混合动力系统，结合了内燃机和电动机的优势，能够实现高效、节能的工作状态。2. 环保节能：混动动力系统能够减少燃油消耗，降低废气排放，有效减少对环境的污染。3. 操作方便：配备了先进的液晶触摸屏控制系统，操作简单直观，方便操作员进行各种操作和监控。4. 功能全面：具备各种起重运输功能，能够满足多种作业需求。并且采用了悬臂伸缩技术，可实现长臂操作，提高工作范围。5. 安全可靠：采用了多种安全保护装置，如重载保护装置、力矩限制装置等，确保起重机在工作过程中安全可靠。6. 高效节约：具备快速起重、快速伸缩等特点，提高效率，节约时间和成本。7. 行驶稳定：配备了四轮驱动，能够在复杂地形下保持良好的行驶稳定性，提高工作灵活性。8. 舒适性：操作室布置合理、宽敞舒适，并配备空调、座椅调节等设施，提供良好的工作环境。总的来说，STC250E-1混动版起重机具有混动优势、环保节能、操作方便、功能全面、安全可靠、高效节约、行驶稳定和舒适性等优点，适用于各种起重作业。

Sany STC250E-1 hybrid crane has the following advantages:1. Hybrid power system: it adopts a hybrid power system, which combines the advantages of the internal combustion engine and the electric motor, and is able to realize a highly efficient and energy-saving working condition.2. Environmental protection and energy saving: the hybrid power system is able to reduce the fuel consumption and exhaust gas emission, which can effectively reduce the pollution to the environment.3. Convenient operation: equipped with the advanced liquid crystal Touch screen control system, the operation is simple and intuitive, convenient for operators to carry out a variety of operations and monitoring. 4. Comprehensive functions: with a variety of lifting and transportation functions, to meet a variety of operational needs. And it adopts the cantilever telescopic technology, which can realize the operation of long jib and improve the working range.5. Safe and reliable: It adopts various safety protection devices, such as heavy load protection device, torque limiting device, etc., to ensure that the crane is safe and reliable during the working process.6. Efficient and economical: It is equipped with the features of fast lifting and fast telescoping, which improves the efficiency and saves the time and cost.7. Stable driving: Equipped with the four-wheel drive, which is capable of maintain good driving stability in complex terrain and improve working flexibility. 8. Comfort: the operating room is reasonably arranged, spacious and comfortable, and equipped with air conditioning, seat adjustment and other facilities to provide a good working environment. 9. Overall, STC250E-1 hybrid version crane has the advantages of hybridization, environmental protection and energy saving, convenient operation, comprehensive functions, safety and reliability, high efficiency and saving, traveling stability and comfort, which is suitable for all kinds of lifting operations.