primer
primer1
noun
primer2
noun
noun
- [mass noun]a substance used as a preparatory coat on previously unpainted wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust
底层涂料，底漆
■a cap or cylinder containing a compound which responds to friction or an electrical impulse and ignites the charge in a cartridge or explosive
火帽，底火；点火药
■a small pump for pumping fuel to prime an internal-combustion engine, especially in an aircraft
（尤指飞机内燃发动机的）启动注油泵
■(Biochemistry)a molecule that serves as a starting material for a polymerization process
(生化)引物，引子
primer2
noun
- an elementary textbook that serves as an introduction to a subject of study or is used for teaching children to read
识字课本，初级读本；入门书
- late Middle English: from medieval Latin primarius (liber) 'primary (book') and primarium (manuale) 'primary (manual')
考试词汇表
