名词 primer:

1. an introductory textbook

2. any igniter that is used to initiate the burning of a propellant

3. the first or preliminary coat of paint or size applied to a surface

primern.启蒙书；入门书n.雷管；底火；底漆primer knob起动加油器捏手柄primer pair引物对primer type主型(染色体), 原型primer line起动管路,启动管路primer leak底火漏泄primer test底火测试primer seat底火座primer lock起动注油器的保险器primer pump启动泵primer base底涂成分,打底涂料,底漆涂料

1. Tests were performed using WHO-approved reagents and primers.
   检测使用的是世界卫生组织批准的试剂和引物。
2. Primers are light weight gentle creams that make the skin smooth and silky.
   引物是重量轻，温柔面霜，使皮肤光滑和乌骨鸡。