dwarf signal造句
例句與造句
- A dwarf signal may also be placed in conjunction with a main signal.
- In Switzerland, shunting manoeuvres can be controlled either by shunting signals or dwarf signals.
- Dwarf signals are typically mounted on the ground in areas of low speed movements or restricted clearances.
- Dwarf signals are usually positioned on the left of the tracks and only apply to that track.
- Dwarf signals may be sometimes mounted higher up on a small mast or other structure for improved visibility.
- It's difficult to find dwarf signal in a sentence. 用dwarf signal造句挺難的
- "' Dwarf signals "'are smaller signals used in low speed or restricted clearance areas.
- As dwarf signals are not designed to be seen from long distances, they are not generally equipped with targets.
- Most signaling aspect systems have a parallel set of aspects for use with dwarf signals that differ from aspects used in high signals.
- Signals like the model N / N-2 could also be mounted directly on the ground as a dwarf signal without a backing.
- This is where a dwarf signal displays multiple lamps on what would ordinarily be a single signal head creating the effect of multiple signal heads.
- If the main signal shows any other aspect than " Stop ", the dwarf signal shows the " Proceed with caution " aspect.
- Dwarf signals may have multiple heads just like a high signal, but sometimes dwarf signals use so-called " virtual heads " to save on space and cost.
- Dwarf signals may have multiple heads just like a high signal, but sometimes dwarf signals use so-called " virtual heads " to save on space and cost.
- These can be known as " high dwarfs " or " stick signals, " but a tall mounting does not change the lower speed applications of the dwarf signal.
- In 1930, close clearances of the Philadelphia Suburban Station complex spurred development of the pedestal-type position, which consisted of two position dwarf signals in a common cast backing.
更多例句: 下一頁