名词
中文翻译：关键过滤器
同义词：
['keystone', 'keystone filter例句：1. The key to solving this problem is to identify the root cause.（解决这个难题的关键是找出根本原因。）']
例句：
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1. The key to solving this problem is to identify the root cause.
解决这个难题的关键是找出根本原因。
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2.The keystone of the ecosystem is the balance between predators and prey.
生态系统的关键石是捕食者和猎物之间的平衡。
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3. The keystone filter in the filter press removes the largest particles first.
压滤机中的键滤器首先去除最大的颗粒。