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利勃海爾LTM1070-4.2起重機的優點包括：1. 大承載能力：該起重機具有70噸的最大起重能力，可以應對各種重型吊裝任務。2. 長臂距離：起重機的主臂長度為50米，輔助臂長度為16米，可覆蓋較遠的作業范圍。3. 靈活性：該起重機具有多種工作模式和工作范圍的選擇，可靈活適應不同的工地需求。4. 操控簡便：起重機配備了先進的操控系統，包括液壓系統、電子控制系統等，使操作更加簡單和精確。5. 高效率：起重機采用了先進的液壓系統和動力系統，提供了更高的工作效率和能源利用率。6. 安全性高：起重機配備了多種安全裝置，包括重載保護、傾倒保護、抗風保護等，確保操作安全可靠。7. 可拆裝：起重機結構設計合理，可方便進行拆裝和運輸，適用于各種作業環境。總的來說，利勃海爾LTM1070-4.2起重機具有承載能力強、靈活性高、操控簡便、高效率和安全性高等優點，適用于各種大型物體的吊裝作業。

The advantages of Liebherr LTM1070-4.2 crane include:1. large load capacity: the crane has a maximum lifting capacity of 70 tons, which can cope with a variety of heavy lifting tasks.2. long jib distance: the crane's main jib length of 50 meters, the auxiliary jib length of 16 meters, which can cover a longer working range.3. flexibility: the crane has a variety of working modes and working range options, which can flexibly adapt to different site requirements.4. easy operation: the crane is equipped with advanced control systems, including hydraulic systems and electronic control systems, making the operation simpler and more accurate.5. high efficiency: the crane adopts advanced hydraulic systems and electronic control systems, which make operation easier and more precise. It can be flexibly adapted to different site requirements.4. Easy operation: the crane is equipped with advanced operation system, including hydraulic system, electronic control system, etc., which makes the operation easier and more precise.5. High efficiency: the crane adopts advanced hydraulic system and power system, which provides higher efficiency and energy utilization.6. High safety: the crane is equipped with a variety of safety devices, including heavy load protection, tipping protection, wind protection, etc., to ensure safe and reliable operation. 7. Detachable: the crane structure is well-designed, which can be easily disassembled and transported, and is suitable for a variety of operating environments. Overall, Liebherr LTM1070-4.2 crane has the advantages of strong loading capacity, high flexibility, easy maneuvering, high efficiency and high safety, which is suitable for lifting and loading of various large objects.