“tracer bullet”的概念、定义、翻译、参考文献-科学参考

单词	tracer bullet
释义	tracer bullet [`trā·sǝr ´bu̇l·ǝt] ^ORDNANCE A bullet containing a pyrotechnic mixture to make the flight of the projectile visible by day and night.
随便看	bead, butt, and square bead butt work beaded lake beaded molding beaded transmission line beaded tube end beadflush panel beading beading plane bead-jointed bead molding bead plane bead test bead thermistor beak beaker beaker sampler beakhead beaking joint beam beam-and-girder construction beam-and-slab floor beam angle Beaman stadia arc beam antenna

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