primer

US /ˈpraɪ.mɚ/
UK /ˈpraɪ.mɚ/
"primer" picture
1.

底漆, 底油

a preparatory coating applied to a surface before painting, wallpapering, or some other form of finishing

:
•
Apply a coat of primer before painting the wall.
在粉刷墙壁之前，先涂一层底漆。
•
This primer helps the paint adhere better.
这种底漆有助于油漆更好地附着。
:
undercoatbase coatsealer
2.

底火, 引爆器

a small explosive device used to ignite the main charge of a firearm or explosive

:
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The bullet contains a small primer at its base.
子弹底部含有一个小底火。
•
He loaded the shotgun with new primers.
他给霰弹枪装上了新的底火。
:
detonatorigniterfuse
3.

入门书, 基础读物

a small book or booklet that introduces a subject or provides basic information

:
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This book serves as a good primer on quantum physics.
这本书是量子物理学很好的入门书。
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She wrote a short primer for beginners learning to code.
她为学习编程的初学者写了一本简短的入门书。
:
introductionmanualguidehandbooktextbook