The test results show that the shield condition of fire, spray pressure and fire power have important effects on water mist fire suppression.
试验结果表明，对灭火效果有重要影响的因素是火焰被遮挡的条件、雾滴直径、喷雾压力和火焰规模。
Mechanical shield spray has good effect in reducing spray drift with low cost, simple structure. The structure is the key point.
机械式罩盖喷雾是一种结构简单、价格便宜和减少雾滴飘失效果好的喷雾方法，其中罩盖结构起着关键的作用。
In theory, the successful development of the spray can be mucosal surface in the body a "protective shield" to prevent viruses;
理论上，成功开发的喷雾，可在人体黏膜表面形成一层“保护罩”，防止病毒入侵；
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