利勃海尔LRT1090-2.1起重(zhòng)机具有以下优点：1. 强大的起重(zhòng)能力：LRT1090-2.1起重(zhòng)机具有90吨的最大起重(zhòng)能力，能够轻松应对各种(zhǒng)起重(zhòng)任务。2. 高效的工作性(xìng)能：该起重(zhòng)机采用了先进的液压系统(tǒng)和起重(zhòng)技术，能够快速、准确地完成各种(zhǒng)起重(zhòng)操作。3. 灵(líng)活的移动性(xìng)能：LRT1090-2.1起重(zhòng)机配备了全(quán)地形四轮驱动系统(tǒng)和四轮转向系统(tǒng)，能够在不同地形和狭窄空间中灵(líng)活移动，提升工作效率。4. 安全(quán)可靠：该起重(zhòng)机配备了多项安全(quán)保护装置，如超载保护系统(tǒng)、倾覆保护系统(tǒng)等，能够确保起重(zhòng)过程中的安全(quán)性(xìng)。5. 操作简便：LRT1090-2.1起重(zhòng)机配备了人性(xìng)化的操作界面和智能化控制系统(tǒng)，操作简便易(yì)懂，降低了操作难度和风险。6. 节能环保：该起重(zhòng)机采用了节能技术和排放控制技术，能够降低能耗和环境污染，符合绿色可持续发展的要求。总的来说，利勃海尔LRT1090-2.1起重(zhòng)机具有强大的起重(zhòng)能力、高效的工作性(xìng)能、灵(líng)活的移动性(xìng)能、安全(quán)可靠的特点，是一款高性(xìng)能的起重(zhòng)机。

Liebherr LRT1090-2.1 crane has the following advantages:1. Powerful lifting capacity: LRT1090-2.1 crane has a maximum lifting capacity of 90 tons, which can easily cope with a variety of lifting tasks.2. Efficient working performance: The crane adopts advanced hydraulic system and lifting technology, which can quickly and accurately complete a variety of lifting operations.3. Flexible movement Performance: LRT1090-2.1 crane is equipped with all-terrain four-wheel drive system and four-wheel steering system, which is able to move flexibly in different terrains and narrow spaces, and improve the working efficiency.4. Safe and reliable: The crane is equipped with a number of safety protection devices, such as overload protection system, tipping protection system and so on, which ensures the safety of the lifting process.5. Easy operation: LRT1090-2.1 crane is equipped with user-friendly hydraulic system and lifting technology. 2.1 crane is equipped with humanized operator interface and intelligent control system, easy to understand the operation, reducing the difficulty and risk of operation. 6. energy saving and environmental protection: the crane adopts energy-saving technology and emission control technology, which can reduce energy consumption and environmental pollution, in line with the requirements of green and sustainable development. Overall, Liebherr LRT1090-2.1 crane is characterized by powerful lifting capacity, efficient working performance, flexible mobility, safety and reliability.