adj. 1.第二(位)的，第二次的；中级的 (opp. primary)。 2.副(的)；从属的；附属的；辅助的；补充的；次要的；次等的；代理的。 3.【医学】继发(性)的，第二期的。 4.【地质学；地理学】中世代的；次生的。 5.【电学】(产生)感应电流的；次级电流的。 6.【化学】仲的，次的；副的，二代的。 7.中等教育[学校]的。 8.【语言学】音次重音的。 9.间接的；非原始的。 短语和例子 Of the two contradictory aspects, one must be principal and the other secondary. 矛盾着的两方面中，必有一方面是主要的，他方面是次要的。 a secondary cause 副因。 secondary action 副作用。 a secondary product 副产物。 the S- strata 【地质学；地理学】中世层。 be of secondary importance 不大重要。 n. 1.助手；副手；帮手；代理人；被委任者；次要的人；次要的东西。 2.【天文学】双星中较小较暗的一个；卫星。 3.副低气压。 4.【电学】次级[二次]绕组[线圈]。 5.【动物；动物学】(鸟的)次级飞羽；腕羽；(昆虫的)后翅。 6.【地质学；地理学】中世代。 7.【语言学】次重音。
being of second rank or importance or value; not direct or immediate; "the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
belonging to a lower class or rank
not of major importance; "played a secondary role in world events"
depending on or incidental to what is original or primary; "a secondary infection"
inferior in rank or status; "the junior faculty"; "a lowly corporal"; "petty officialdom"; "a subordinate functionary" 同义词：junior-grade, lower-ranking, lowly, petty, subaltern,
coil such that current is induced in it by passing a current through the primary coil 同义词：secondary coil, secondary winding,
the defensive football players who line up behind the linemen
例句与用法
1.
The breast is a secondary sex organ . 乳腺是属于第二性征器官。
2.
A secondary nitramide is then formed . 其结果生成仲硝酰胺。
3.
Sludge liquor is recirculated in the secondary system . 污泥水回流到二级处理系统。
4.
Lignin is a characteristic component of secondary walls . 木质素是次生壁成份的特征。
5.
Secondary interstices develop after the rock is formed . 在岩石形成以后再发展次生间隙。
6.
A secondary action of this drug is to cause pellagra . 这个药的一个副作用是会引起糙皮病。
7.
Screens serve a secondary purpose not patently obvious . 阻尼网还有一个不很明显的次要目的。
8.
Treachery, for him, seemed almost the secondary issue . 对他来说，背信弃义几乎成了次要问题。
9.
The secondary valence is directed toward fixed positions in space . 副介指向空间的确定位置。
10.
The resulting residual chromatism is known as secondary spectrum . 所得到的剩余色差叫做二次光谱。
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