- 他們趕快點著煤油信號燈，發出求救信號。
They quickly lighted kerosene flares to signal the SOS.
- 汽車上已逐漸以信號燈顯示取代以手示意的作法。
Signal lights on cars have edged out hand signals.
- 互斥現象能由使用信號燈或互斥完成。
Mutual exclusion can be achieed with the use of a semaphore or mutex.
- 那個交通信號燈由紅色變成綠色。
The traffic lights changed from red to green .
- 這輛汽車亮起了危險信號燈。
The car had its hazard warning lights on.
- 燈塔的信號燈把輪船引向港口。
A beacon lights the ships to harbor.
- 請勿吸菸，直到"禁止吸菸"的信號燈消失為止。
Please refrain from smoking until the"No Smoking"sign is switched off.
- 我等候信號燈變換。
I wait for the light to change.