As she emerged from her drifting cloud of gun smoke with the water churned to foam beneath her bow.

当“瓦萨”号从弥漫的礼炮烟云中出现时，船头下浪花加溅。

youdao

The fire - foam -Gun for forest fire is an apparatus driven by a light pump which can change the water mixed with fire foam into foam for extinguishing fire directly and efficiently.

森林泡沫灭火枪是以轻型泵为动力，将森林泡沫剂与水混合后迅速变成泡沫。

youdao