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Taking acid-treated stellerite as main material, zeolite X powder was prepared by hydrothermal method.

酸处理石为主要原,采用水热法X型石粉体。

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These scientists think they'll be able to stop nitrogen oxides before they reach the atmosphere by running the car exhaust past the superacid first.

科学家们认为尾气放前过超强酸处理能阻止氮氧化放。

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firearm, firearmor, firearms, fireatlas, fireback, fireball, fireballer, fireballing, firebar, firebase,

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3G, 401(K), a,
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