Proterties This article is shallow brown to yellow brown liquid, has fragrant air.

品为浅棕色至黄棕色液体，气香。

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In this pater , the proterties of the rings that satisfs the semi-maximum condition for left (right) ideal and maximum condition for zero-factor are discussed.

主要讨论对左（右）理想满足半极大条件的环与对零因子满足极大条件的环的性质。

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