| 单词 | tracer |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔label〕Chemistry To add a tracer to (a compound).【化学】 使示踪：向（一个复合物）加示踪剂美国传统〔radiobiology〕The use of radioactive tracers to study biological processes.放射生物学：用放射性追踪的使用来研究生物进程美国传统〔radioiodine〕A radioactive isotope of iodine widely used as a tracer in medical diagnosis.放射性碘：碘的一种放射性同位素，广泛地用于医学诊断作为追踪剂美国传统〔radiolabel〕To tag (a hormone, an enzyme, or other substance) with a radioactive tracer.放射性同位素追踪剂：同放射性追踪剂（荷尔蒙、酶或其它物质）美国传统〔radiotracer〕A radioactive tracer.放射性追踪剂美国传统〔renogram〕A graphic record of the passage of radiation through the renal system after injection of a radioactive tracer.肾探测图：一张注入放射性追踪剂以后放射线通过肾脏系统的图表记录美国传统〔take〕He saw the tracers of the machine gun taking out after the enemy convoy.他看见机枪的曳光弹朝着敌人车队飞去。英汉大词典〔tracer〕Tracer bullets streaked through the sky.曳光弹划过长空。剑桥高阶〔tracer〕A tracer bullet.曳光弹美国传统〔tracer〕The enemy fired tracers at the aircraft carrier.敌人向航空母舰发射了曳光弹。韦氏高阶〔tracer〕The sky was bright with tracer fire.曳光弹发出的火光照亮了天空。剑桥高阶〔tracer〕They injected her with a radioactive tracer and tracked it via X-rays.他们给她注射了一剂放射性示踪剂，然后通过X光跟踪它。韦氏高阶Tracer bullets streaked through the sky.曳光弹划过长空。剑桥国际The sky was bright with tracer fire.天空被曳光弹的火光照亮了。剑桥国际 |
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