例句與造句

1. Trailing switches ( where two sets of wires merge ) do not require action by the operator.
2. The NTSB also stated that a railroad switch showed evidence of damage consistent with the Metrolink passenger train " running through " the trailing switch points while they were set to allow the freight train to proceed onto the adjacent track, forcing them out of the way.
3. With the left truck wheels running just inside the rails, and the right truck wheels just outside the rails, the engine continued down the track for another 198 feet ( 61 m ) until the left front truck wheel hit a crossover frog from a trailing switch ( part of a vestigal railroad switch track for a railroad siding at the location that in 1925 no longer existed ), diverting the engine to the right and causing it to derail entirely.
4. It's difficult to find trailing switch in a sentence. 用trailing switch造句挺難的