在出现不可预测的“黑天鹅”事件时，过分依赖预测的系统(如这次金融危机前的银行系统，通过使用杠杆)显得非常脆弱，最终将彻底粉碎。

A system that is over-reliant on prediction (through leverage, like the banking system before the recent crisis), hence fragile to unforeseen "black swan" events, will eventually break into pieces.

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通过分析表明：影响粉碎区半径和爆腔半径的主要因素是冲击波的强度、岩石的性质和炮孔尺寸等。

The results show that the principal factors effecting the smash district and the blasting cavity radius are strength of the shock wave, the characteristics of rocks and radius of the hole.

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通过分析对撞式流化床气流粉碎机的喷嘴结构、分级叶轮型式、加料口位置及底部结构等，阐述了该型气流粉碎机的结构型式及特点。

The paper presents the internal structures and performance features of the fluidized bed opposed jet mill based on the jet nozzles structure, impeller types, feeding inlet and bottom structure.

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