This tool helps to identify the faulty end, thereby avoiding the risk of damaging a good connector by opening it.

这个工具帮助识别故障端，从而避免因为开路造成正常连接器毁坏的风险。

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And index futures is just a effective hedging tool, by hedging ETF with index futures to reach the goal of avoiding risk and locking yield.

股指期货恰恰是一种有效的套期保值工具，通过对etf进行套期保值操作可以达到规避风险和锁定收益的目的。

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As a valuable tool of avoiding exchange-rate risk and guaranteeing price congenially, the FX Derivatives have market risk, credibility risk, liquidity risk, management risk and legal risk.

外汇衍生工具作为规避汇率风险进行投机保值的工具，具有高风险性，其基本风险有市场风险、信用风险、流动性风险、营运风险和法律风险。

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