| 1. | 3 short siren signals : vessel is going backwards 短声号三响:表示本船正在开倒车 |
| 2. | 2 short siren signals : vessel is turning left 短声号两响:表示本船正把航向转左 |
| 3. | 1 short siren signal : vessel is turning right 短声号一响:表示本船正把航向转右 |
| 4. | 2 long , 1 short : vessel will get over on the right 两响长声后跟著一响短声号:表示我意欲在你右边越过 |
| 5. | Measurement of sound pressure level for sound signal appliances by seagoing vessel 海船声号器具的声压级测量 |
| 6. | Short siren signal : lasts for about 1 second long siren signal : lasts for 4 - 6 seconds 短声号一词指历时一秒左右之声号。 |
| 7. | At sea . it may also be used as a sound signal to mean : " i require a pilot " 在海中,此信号可作为声号,表示"需要领航" 。 |
| 8. | Flag signal , flash light and sound signal are three of the methods of signalling at sea 旗号声号及灯光信号是其中三种海上通讯的方法。 |
| 9. | Vessels can also use light signal to supplement the siren signal . light signals can be repeated if appropriate 船舶可利用灯光信号以补声号之不足,更可在适当时重覆。 |
| 10. | I prayed , then went to bed . i was still awake , when suddenly i heard a trumpet sound . a voice cried out to me , " stand ! 祷告后我便睡觉,我还未睡著,突然间我听到一声号筒声,有声音对我说?站起来! |