V2EX tracer

Tracer

释义 Definition

tracer /tresr/:指“示踪物(用来追踪路径或流向的物质/信号)”或“曳光弹(飞行时会发光、便于观察弹道的子弹)”。在绘图语境中也可指“描图员/描摹者”(较少见)。

例句 Examples

The doctor used a tracer to see how blood flows through the heart.
医生使用示踪剂来观察血液如何流经心脏。

In the dark, tracer rounds stitched the sky as the soldiers tried to mark the enemy’s position.
在黑暗中,曳光弹划亮夜空,士兵试图借此标定敌人的位置。

发音 Pronunciation (IPA)

/tresr/

词源 Etymology

tracer 来自动词 trace(追踪、描绘)+ 表示“人或物”的后缀 -ertrace 源自古法语 tracer(画线、描绘),与“拉出痕迹/轨迹”的含义相关,进一步可追溯到拉丁语中表示“拖拽、痕迹/轨道”的词根体系。

相关词 Related Words

文学作品 Literary Works

  • Catch-22(Joseph Heller)战争场景中常见对“tracer/曳光弹”的描写,用以呈现混乱与危险的空中/地面火力。
  • The Things They Carried(Tim O’Brien)越战叙事里涉及枪火与夜战意象,常出现“tracers”这类视觉化战争细节。
  • Slaughterhouse-Five(Kurt Vonnegut)二战相关场景中可见对炮火与弹道光迹的描写语汇(含 tracers 的使用语境)。
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