音标：['treisә] ；

n. 追踪者, 描图者, 描绘工具
[计] 跟踪程序

n. an investigator who is employed to find missing persons or missing goods
n. an instrument used to make tracings
n. (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes

词型变化：名词复数形式 : tracers

词性分布：

名词100%

tracer的用法和样例：

例句

用作名词(n.)

Maybe Bartling had a tracer put on his launch during the night.也许昨天晚上，巴特灵就在他的汽艇上安装了一个跟踪器。
We continuously inject a tracer into a point in a steadily moving fluid.我们连续地将一种示踪物注入某稳定运动流体中之一点。
Metal piercing, incendiary or tracer ammunition is prohibited from IPSC competitions.穿甲弹、烧夷弹或曳光弹在IPSC竞赛中是明令禁止的。
This solute will be referred to as a tracer.这种溶质称为示踪剂。
The tracer becomes increasingly dispersed.示踪剂逐渐地扩散。

词汇搭配

tracer bullet曳光弹
carbon tracer示踪碳
curve tracer波形记录器,曲线描绘...
tracer atom示踪原子
tracer technique示踪技术
fluorescent tracer荧光示踪剂
tracer agent指示剂
tracer level示踪量级
tracer analysis示踪分析
tracer material示踪物质,示踪材料...
tracer dose示踪剂量
radioactive tracer放射性示踪剂,放射性...
tracer method标记法,同位素示踪法...
isotopic tracer同位素示踪剂...
tracer chemistry示踪化学,指示剂化学...
chemical tracer化学指示,化学示踪物...
signal tracer信号跟踪器,信号式线...
radioisotope tracer放射性同位素示踪物...
tracer element示踪原子
electronic tracer电子描绘器

【近义词】

tracer bullet曳光弹

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