“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	electronic line scanning electronic listening device electronic locator electronic locking electronic logger electronic magnetic moment electronic mail electronic microradiography electronic motor control electronic multimeter electronic music electronic musical instrument electronic navigation electronic noise jammer Electronic Numerical Integrator and Calculator electronic organ electronic packaging electronic phase-angle meter electronic photometer electronic piano electronic polarization electronic position indicator electronic power supply electronic publishing electronic pumping

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