Mainland bourses are contemplating1 the introduction of a circuit-breaker mechanism2 to arrest abnormal price swings on capital markets.

国内证交所正考虑引入熔断机制，以防范资本市场发生非正常价格波动。

什么是指数熔断机制？

The circuit-breaker mechanism refers to measures adopted by stock exchanges to temporarily halt trading to avert3 panic selling after the stock index has fallen a certain percentage.

熔断机制是指股指下跌肯定比率后，证券交易平台采取中止买卖以防止恐慌性抛售的手段。

Circuit-breakers will be triggered off if the market fluctuates 5 percent and 7 percent, according to the plan.

依据计划，假如市场涨跌波动达到5%和7%，将触发熔断机制。