tracer

noun

1. 曳光弹
   a bullet or shell (= a kind of bomb) that leaves a line of smoke or flame behind it
2. 示踪剂；同位素指示剂
   a radioactive substance that can be seen in the human body and is used to find out what is happening inside the body

1. Hydraulic characteristics of the UV disinfector was investigated by tracer experiment.
   采用示踪实验研究紫外线消毒器的水力特性。
2. Furthermore, incentive and response technology of the tracer was used to study the axial backmixing of the liquid in different structure cell.
   同时，使用示踪激励响应技术，研究了不同结构单元的轴向返混情况。
3. 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。
4. Liquid flow velocity in the down-comer was measured using the electrolyte tracer measurement ( ETM) technique.
   应用电极示踪测试技术（ETM）测定了下降段液体速度；
5. Radionuclide tracer analysis is a third important method.
   第三种重要方法是同位素示踪分析。
6. Application of isotopic tracer in life science
   同位素示踪在生命科学中的应用
7. Methods According to the study of outcrops, apply interwell tracer, water flooding method and fracturing technique.
   方法采用野外观察、井间示踪剂、动态注水、压裂等方法进行裂缝识别研究。
8. Posts a tracer token into the transaction log at the publisher and begins the process of tracking latency statistics.
   将跟踪令牌发布到发布服务器的事务日志中，并开始跟踪滞后时间统计信息的过程。
9. Tracer techniques give information about structure and reactions in solid state physics.
   示踪法技术在固态物理学方面给出有关结构和反应的信息。
10. I will clean up the tracer and destroy your file, after which I will run away from Nigeria to meet with you.
    我要清理示踪剂和毁灭你的文件，之后我将离开尼日利亚和你见面。
11. Single well backflow tracer test There is reflux of barium into the terminal ileum.
    单井示踪剂回流试验钡剂反流进入回肠末端。
12. Tracer lighting up the sky.
    导弹和枪火点燃了天空。
13. Is the name of the publication in which tracer tokens were inserted.
    在其中插入了跟踪标记的发布名称。
14. In the meantime, I'll ask my Agent to send a tracer to Penang to make further investigation.
    在此期间，我将让我的代理人给槟榔屿港发一个查询单以作进一步调查。
15. Artificial tracer method has been used to investigate dam leakage problem broadly.
    人工示踪方法已在堤坝渗漏探测中得到很多应用。
16. Accurate weaponry, including optics, tracer rounds and effects.
    精确的武器，包括光学，曳光子弹和影响。
17. Positron emission tomography ( PET) is an imaging technique that combines a radioactive tracer with a molecule.
    正电子发射断层成像（PET）是一种结合单一分子放射示踪的成像技术。
18. Experimental study of Chinese ink as a new type of dye tracer in sentinel lymph node biopsy~.
    中华墨汁作为前哨淋巴结活检新型示踪剂的实验研究。
19. Different tracer curve types correspond to different reservoir types, providing reliable instructions for in situ profile control.
    不同的曲线类型反映了不同的储层，从而有效指导现场调剖。
20. The proposed method is more accurate than the qualitative investigation such as isotopic tracer.
    该方法较同位素及综合示踪法定性分析更为精确。
21. It gives an example for utilizing tracer detecting on engineering investigation on water and hydropower projects.
    为示踪探测用于水利水电工程勘察提供了一个范例。
22. Study of the Erosion Features of Small Watersheds Based on~ ( 137) Cs Tracer
    基于~（137）Cs法对小流域侵蚀特征的研究
23. In this article, Perfluorocycloalkane tracer technology and its applications in atmospheric pollutants transport and dispersion were summarized briefly.
    简要综述了全氟环烷烃示踪技术及应用、研究进展及中物院示踪技术研究现状。
24. Heavy water is also used in research as an isotopic tracer for chemical reactions and biochemical pathways.
    在实验研究中，可用作化学过程和生物化学过程的同位素示踪剂。
25. To obtain accurate K values without this problem, oxygen was used as the tracer component in this work.
    为了获得准确的k值，如果没有这个问题，氧气被用来作为示踪剂成分在这方面的工作。
26. I put a tracer on the crate.
    我在箱子上放了一个追踪器。
27. This solute will be referred to as a tracer.
    这种溶质称为示踪剂。
28. Investigation of adsorption, distribution and migration of lead between environment and plant by stable lead isotopic tracer
    铅在植物-环境体系中的吸收、分布和迁移规律的稳定同位素示踪法研究
29. Or eliminates an electronic tracer.
    或除掉一个电子追踪器。

noun

1. ammunition whose flight can be observed by a trail of smoke

   Synonym:    tracer bullet

2. (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes

3. an instrument used to make tracings

4. an investigator who is employed to find missing persons or missing goods