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。

youdao

Celebratory gunfire and explosions rang out over the city and cars blaring their horns crowded onto the streets. Overhead, red tracer bullets darted into a black sky.

庆祝的枪声和爆炸声响彻整个城市，汽车鸣笛，聚集到街头。头顶，红色的曳光弹飞向漆黑的夜空。

youdao

His unit was caught in what Mr Ellicock describes as a Vietnam-style exchange of red and green tracer bullets.

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