中联重科ZTC250V452起重机的优点有：1. 大承载能力：该起重机具有250吨的最大起重能力，能够满足各种大型工程的起重需求。2. 高效运行：采用先进的液压系统和电气系统，具有快速、精确的起重和操作能力，提高工作效率。3. 灵活多样：具有较大的工作半径范围和360度旋转能力，能够适应各种复杂工况和起重作业需求。4. 安全可靠：配备了多种安全装置，如故障自诊断系统、倾覆保护装置等，确保作业安全可靠。5. 操作方便：具有人性化的操作面板和控制系统，操作简单易懂，降低了操作难度和技术要求。6. 整机稳定性好：采用优质的结构材料和先进的设计理念，使整机具有较好的稳定性和抗震能力。7. 维护方便：具有开放式结构设计，方便维护和检修，降低了维护成本和时间。总的来说，中联重科ZTC250V452起重机具有大承载能力、高效运行、灵活多样、安全可靠、操作方便、整机稳定性好和维护方便等优点，适合于各种大型工程的起重作业。

The advantages of Zoomlion ZTC250V452 crane include:1. Large load capacity: the crane has a maximum lifting capacity of 250 tons, which can meet the lifting needs of various large-scale projects.2. High-efficiency operation: it adopts the advanced hydraulic system and electrical system, which has the ability of fast and precise lifting and operation, and improves the working efficiency.3. Flexible and diversified: it has a large range of working radius and 360-degree rotating ability, can adapt to a variety of complex working conditions and lifting operations. 4. safe and reliable: equipped with a variety of safety devices, such as fault self-diagnosis system, tipping over protection device, etc., to ensure that the operation is safe and reliable. 5. easy to operate: with a humanized operating panel and control system, the operation of the simple and easy to understand, reducing the difficulty of the operation and the technical requirements. 6. good stability of the whole machine: the use of high-quality structural materials and advanced design concepts, so that the whole machine has a good stability and seismic capacity. 7. Convenient maintenance: with open structure design, it is convenient for maintenance and overhauling, which reduces the maintenance cost and time. 8. Overall, Zoomlion ZTC250V452 crane has the advantages of large load capacity, efficient operation, flexible and diverse, safe and reliable, easy to operate, good stability of the whole machine and convenient maintenance, etc. It is suitable for lifting operations in various large-scale projects.