The tower tube structure to prevent counterbalance freefall provides ideal support, to ensure that the load loss protection is on the safe side.
六是塔筒结构为防止平衡重自由落体坠落提供了理想的支撑载体，确保了失载保护的万无一失。
The tower tube structure to prevent counterbalance freefall provides ideal support, to ensure that the load loss protection is on the safe side.
六是塔筒结构为防止平衡重自由落体坠落提供了理想的支撑载体，确保了失载保护的万无一失。
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