把这段话翻译成中文：Scientists believe that the large-scale repairs on Palazzo Venezia, designed and directed by the architect Carlo Fontana, began around 1690. At that time, he was advanced in age and his productivity had slowed considerably; however, they acknowledge that his career seriously advanced architectural ideas of government authority and institution design.
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科学家们认为，由建筑师卡洛·丰塔纳设计并指导的威尼斯宫大规模修复工程大约始于1690年。当时，他已年事已高，生产力大幅下降；然而，他们承认，他的职业生涯极大地推动了政府权威和机构设计的建筑理念。
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