更详细的技术性描述（推荐用于与券商或开发者沟通）： "The requirement is for an order type that initially functions as a passive limit order resting on the book. Upon the market price hitting a specified stop/trigger price, the order should automatically cancel its limit instruction and immediately become an aggressive market order to ensure execution." 关键点说明（可附加解释）： This is not a standard stop-limit order, as a stop-limit converts into a second limit order, not a market order. This is also different from a standard stop (market) order, which is dormant until triggered, without the initial passive limit order phase. In essence, it combines the behaviors of: 1) Limit Order -> 2) Stop Price Trigger -> 3) Market Order. 补充说明（关于可行性）： "This functionality is not typically offered as a native order type by most brokers. It may require implementation through conditional orders (OCO/brackets), a custom algorithmic script, or a two-step manual process (placing a limit order, then manually replacing it with a market order upon trigger)."