《爱之药》与《烟火信号》。
烟火作为信号被广泛应用于各种领域，比如在军事上，用来示意敌军的到来。
They used their fireworks as signals for many things such as signaling that another army was approaching.
救生圈附件，如自亮灯浮，烟火信号和安全绳等，均安放连接正确，并可立即使用。
Attachments of lifebuoys, such as self-igniting lights, smoking signals and safe lines, are correctly connected and ready for immediate use.
在古代，士兵传递烟火信号来交换消息。
In the ancient time, soldiers sent smoke signals to exchange information.
船用烟火信号通用技术条件。
船用烟火信号通用技术条件。
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