Concurrently

For the next four years Mr. Johnson continued building 2-4-0 express passenger engines, thus continuing the Kirtley practice, but from 1882 onwards he built all his express engines with the 4-4-0 or the 4-2-2 wheel arrangement, the two types being put in service concurrently between the years of 1887 and 1900.

Concurrently with the St. Pancras-Bedford service, diesel trains have now taken over that between Kentish Town and Barking, on an even-interval basis at half-hourly intervals.

In many instances, the military was quite unable to distinguish right away between the Red Guard and Revolutionary organizations led by Maoist activists and those organized by Party officials whom Mao wished to topple, since both sides claimed to be dedicated to Mao’s policy. Furthermore, many military commanders were concurrently local administrators such as those in Tibet and Hsinchiang.