At night lights charge the mist with mysterious glow.

夜晚，水雾在灯的映射下发出神秘而幽暗的光。

This would light the gunpowder, which would then light the main charge.

这样就会点燃火药，火药就会点燃主装药。

For example, sometimes the charge in the pan would light but would fail to light the main charge.

例如，有时火药池里的火药会点燃，但并没有点燃主装弹药。