Global Surveyor was built with redundant control systems to guard against failure.
全球探测者为防止问题，装有额外的控制系统。
To further guard against financial risks, to effectively control the scale of university debt.
为了进一步防范财务风险，有效控制高校债务规模。
To further guard against financial risks, to effectively control the scale of university debt.
为了进一步防范财务风险，有效控制高校债务规模。
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