英语
西班牙语
tracer [美 ˈtreɪsər, 英 ˈtreɪsə] 名词
1.1. tracer U or C 军事:
- tracer
- trazadora f
- tracer bullet
- bala f trazadora
1.2. tracer U or C 医学:
- tracer
- trazador m
2.1. tracer C (inquiry):
- to put a tracer or tracers on sth
- hacer diligencias para encontrar algo
2.2. tracer C (person):
- a tracer of missing persons
- una persona que se dedica a la búsqueda de desaparecidos
西班牙语
英语
- trazador
- tracer
tracer [ˈtreɪsəʳ, 美 -ɚ] 名词 军事
- tracer
- bala m trazadora
tracer [ˈtreɪ·sər] 名词 军事
- tracer
- bala m trazadora
单语范例（未经PONS编辑处理）
They are commonly used as a tracer agents.
en.wikipedia.org These compounds use a chemical tracer which is attracted to or concentrated by the activity which is being studied.
en.wikipedia.org Three-dimensional images of tracer concentration within the body are then constructed by computer analysis.
en.wikipedia.org They are often used as a tracer dye within water to determine the rate and direction of flow and transport.
en.wikipedia.org Therefore, growth in the error vector will cause a corresponding decrease in the tracer gradient and vice versa.
en.wikipedia.org