求翻译：再拿我们的准提观音铜材做比喻，铜材最高时曾经达到80000多一吨，而因为全球的金融危机的影响，金属市场行情也随之而变化，我们必须要掌握这些信息，利用这些信息来及时调整我们的方案和预期，只有这样，我们才能得到真正的“真知”。是什么意思？

Then we also goddess of copper, copper peak has reached more than 80,000 tons, and because the effects of the global financial crisis, change the metal market, we must have this information, use this information to adjust our programmes and expectations, so that we can get the real "truth".