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汉语拼音：yè guāng dàn

一种弹头尾部装有能发光的化学药剂的炮弹或枪弹，发射后能发光，用以显示弹道和指示目标。

1. 一种尾部装有能发光的化学药剂的炮弹或枪弹。发射后发出红、黄或白色的光。用于指示弹道和目标。

• They target bigger ships at night, lighting up the sky with tracers, heavy-machinegun fire and rocket-propelled grenades.

  通过使用曳光弹照明夜空，用重型机枪扫射和用火箭推进手榴弹袭击，海盗敢于在夜间袭击更为大型的船只。

• Select items, including flakes and tracer launcher, missile launch detection system and night vision compatible cockpit lighting.

  选择项包括箔条和曳光弹发射装置，导弹发射探测系统和夜视兼容的驾驶座舱照明。

• The nitrate and chlorate, very volatile, give off brilliant crimson flames and are used in flares, fireworks, and tracer bullets.

  卤化锶、硝酸锶和氯酸锶极易挥发，并能使火焰呈亮猩红色，用于各种照明弹、烟花和曳光弹中。

• Other field reports described the effects of a burst of 20mm HEIT rounds directed at enemy-occupied buildings or hedgerows.

  其他战场报告显示20mm高爆燃烧曳光弹的连射对敌军占领的建筑物或灌木树篱非常有效。

• Tracer shells leave a trail of burning chemicals containing magnesium.

  曳光弹的那道燃烧尾迹中含有化学元素镁

• Tracer bullets landed on our balconies.

  曳光弹就落在我们的阳台上。

• He smoked and watched [tracer bullets] fly by.

  他会抽烟，看着[曳光弹]飞过。

• Tracers work both ways.

  曳光弹是双向作用的。

• I saw a lot of inbound tracer, but never saw a hit.

  我看到有很多曳光弹朝我们打过来，但没有看到一颗有命中的。