an_indefinite_article_有道手机词典

1.In English, "a" and "an" are called the indefinite article, and "the" is called the definite article.
在英语中，“a”和“an”被称为不定冠词，“the”被称为定冠词。
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2.Article 4. There are three different terms of validity of resident identity CARDS: 10 years, 20 years and an indefinite number of years.
第四条居民身份证的有效期限分为十年、二十年、长期三种。
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3.Based on the quality of linear operation about indefinite integral, the article puts forward an indefinite integral principle of making linear combination and reducing power of integrand.
从不定积分的线性运算性质出发，给出了计算不定积分的被积函数线性组合化、降幂的积分原则，并结合实例分析了这一原则在不定积分计算中的指导作用。
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