tracer怎么读/tracer的发音
tracer的音标：英[ˈtreɪsə(r)] 美[ˈtreɪsər]
英： 美：
tracer是什么意思
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
tracer的用法和双语例句
1. Contact tracers search for individuals who may have come into contact with an infected person.
接触者追踪员寻找可能与感染者接触过的人员。
2. The tracer “lit up” during MRI scans.
示踪剂在核磁共振扫描时“亮起”。
3. Tracers arced across the night sky toward the truck, low, fast, and deadly.
曳光弹在夜空中划出弧线射向卡车，又低又快，且致命。
4. I’m going to try running a tracer.
我要试着运行一个追踪程序。
5. Carbon monoxide is a good tracer for moving smoke plumes, even across large distances.
一氧化碳是追踪烟羽移动的良好示踪剂，即使经过长距离。
6. Tracer techniques give information about structure and reactions in solid state physics.
示踪技术在固态物理学中提供关于结构和反应的信息。
7. The company says contact tracers can get information within a few hours by searching a passenger’s name or trip receipts.
该公司表示，接触者追踪员通过搜索乘客姓名或行程单，可在几小时内获取信息。
8. The U.S. Centers for Disease Control and Prevention’s director has estimated the country will need 100,000 tracers.
美国疾病控制和预防中心主任估计，美国将需要10万名接触者追踪员。
9. During a PET scan, the patient is injected with radioactive tracer molecules that emit positrons when they decay.
正电子断层扫描时，病人被注射放射性示踪分子，这些分子衰变时会释放正电子。
10. Tracers try to contact every person who came within two meters of an infected person.
追踪员试图联系每一个曾与感染者相距两米以内的人。