smoke signal

音標(biāo)發(fā)音

it just may be a smoke signal that summons the grace of God.
那可能只是上帝美妙恩典的表征而已。
Remember, next time your little hut is burning to the ground--it just may be a smoke signal that summons The Grace of God.
記住，下次當(dāng)你的小茅屋被燒毀，它可能是一個(gè)煙霧信號(hào)，將上帝的恩典傳達(dá)給你。
A combined intelligent sensor which can detect the temperature and smoke signal is proposed in this paper , and the fire signals can be realized automatically by its internal microcomputer .
提出了一種可同時(shí)實(shí)現(xiàn)溫度信號(hào)和煙霧信號(hào)測(cè)量的復(fù)合式傳感器，其內(nèi)藏微處理器可實(shí)現(xiàn)對(duì)火情信號(hào)的自動(dòng)識(shí)別、檢測(cè)。

a signal that uses smoke from a fire to represent words, used to send messages over long distances

If someone such as a politician or businessperson sends out smoke signals, they give an indication of their views and intentions. This indication is often not clear and needs to be worked out.