总体天气趋势已经是清楚了，只是具体天气情况还是具有模糊性。

The general trends are clear, but the details are obscure.

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由于自然语言具有模糊性，业务策略常常无法直接执行，需要加以解释。

Given the ambiguity of natural language, business policies are often not directly actionable and need interpretation to be enforced.

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它既具有模糊控制灵活、鲁棒性好的优点，又具有PID控制精度高的特点。

The new one not only have agility and good robustness of blur control but also possess high precision of PID controller.

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