《爱之药》与《烟火信号》。
船用烟火信号通用技术条件。
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.
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.
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.
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.
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