Super seat: double seat, A/C by window and aisle, single seat, F by window and aisle.
First-class seat numbers: A and F by the window, C and D by the aisle, second-class seat numbers: A and F by the window, C and D by the aisle, and B in the middle of a triple seat.
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Motor train and full-name power vehicle refer to vehicles equipped with power devices in rail transit system, including locomotives and power cars. Motor vehicles are equipped with driving wheels, and the corresponding vehicles without driving devices are trailers. If the train can run normally on the track, there must be a moving car to provide enough traction for the whole train, but it is not necessary to hang a trailer without power.
EMU is a railway vehicle equipped with wheel-driven mechanical equipment, not an EMU. Not only high-speed trains have bullet trains, but all types of vehicles, including constant-speed EMUs, ordinary-speed trains, subway trains, light rail trains, monorails and maglev trains, have bullet trains.
Comfort level
The second-class seat is generally equivalent to the soft seat of the dining car. The seat material is slightly elastic, not completely hard, and basically comfortable. The best ride time should not exceed 4 hours.
ticket price
Second-class seats are relatively expensive, not only higher than hard seats and soft seats, but also higher than hard sleepers and even soft sleepers, which is one of the main reasons why the public still relies on Puller.
Layout mode
Second-class seats are generally set to the "2+3" mode of traditional hard seats (that is, there are 2 or 3 seats on both sides of the window in a row of seats), and some EMUs, such as CRH6A EMUs, adopt the "2+2" mode to arrange seats in order to improve the standing space and increase the train capacity during peak hours.
additional function
Second-class seats usually have a small number of auxiliary equipment, such as folding front table, chair back adjustment, book case, spare bag and charging port. However, the convenience facilities in the second-class seat of CRH6 EMU are reduced, but the standing handrail device is added.
Second-class seat Baidu Encyclopedia