求翻译：②投资风险控制。企业通过筹资活动取得资金后，进行投资的类型有三种：一是投资生产项目上，二是投资证券市场，三是投资商贸活动。在进行投资风险决策时，其重要原则是既要敢于进行风险投资，以获取超额利润，又要克服盲目乐观和冒险主义，尽可能避免或降低投资风险。在决策中要追求的是一种收益性、风险性、稳健性的最佳组合，或在收益和风险中间，让稳健性原则起一种平衡器的作用。是什么意思？

② investment risk control. Companies access to capital through financing activities, the type of investment, there are three: First, the investment and production projects, investment in the securities market, investment business activities. When making investment risk decisions, the important princ

2 investment risk control. Through fund-raising activities to finance the investment, there are 3 different types: one is on investment and production projects, investing in the securities markets are 2, 3, investment business activities. Investment risk in decision-making, its very important princi

② investment risk control. After obtaining funds through fund-raising activities, to invest, there are three types: first, investment projects, investment securities market is the second, third, investment and trading activities. When the decision to invest in risk, the important principle is that w