利勃海尔LTM1055-3.1军用起重机具有以下优点：1. 强大的起重能力：该起重机具有55吨的起重能力，可满足军队在各种作战环境和任务中的起重需求。2. 灵活多变的工作范围：该起重机具有具有三节可变长臂，可灵活调整工作范围和高度，适应不同场地和作业需求。3. 高效的作业性能：该起重机配备了独特的变幅系统，可快速调整变幅范围，并具有出伸功能，可提高作业效率和灵活性。4. 先进的安全性能：该起重机采用了最新的安全技术和装置，包括超载保护系统、倾覆保护系统等，确保作业安全和人员的生命安全。5. 快速的设置和拆卸：该起重机具有简单易用的操作界面和快速设置和拆卸的功能，可大大缩短作业准备时间，提高作业效率。6. 高度可靠的机械性能：该起重机采用了优质的材料和工艺，具有高度可靠的机械性能，可在各种恶劣环境下稳定运行。综上所述，利勃海尔LTM1055-3.1军用起重机具有起重能力强、灵活多变、高效安全等优点，是军队在军事作战和工程建设中的重要装备之一。

Liebherr LTM1055-3.1 military crane has the following advantages: 1. powerful lifting capacity: the crane has a lifting capacity of 55 tons, which can meet the army's lifting needs in a variety of combat environments and missions. 2. flexible and variable working range: the crane has three sections of variable luffing jibs, which can be flexibly adjusted in the working range and height, to adapt to the different venues and operational needs. 3. high efficiency The crane is equipped with a unique luffing system, which can quickly adjust the luffing range and has an outreach function, which can improve the efficiency and flexibility of the operation. 4. advanced safety performance: the crane adopts the latest safety technology and devices, including overload protection system, tipping protection system, etc., to ensure the safety of the operation and the safety of the personnel's life. 5. quick setup and dismantling: the crane has a simple and Easy-to-use operation interface and quick setup and dismantling function, which can greatly shorten the operation preparation time and improve the operation efficiency. 6. Highly reliable mechanical performance: the crane adopts high-quality materials and technology, and has highly reliable mechanical performance, which can be stably operated in various harsh environments. To summarize, Liebherr LTM1055-3.1 military crane has the advantages of strong lifting capacity, flexibility, high efficiency and safety, which is one of the important equipments for the army in military combat and engineering construction.