manual direction center造句

On 8 October 1954, the 25th Air Division at McChord AFB replaced the 4704th ADG as the Command and Control organization for Paine AFB . At that time, intercepts by the 83d FIS were directed by a manual direction center ( DC-12 ) at McChord AFB, which received radar data from a wider series of search and height surveillance radars in the Pacific Northwest and British Columbia in Canada.
On 6 February 1952, the 4706th Defense Wing at O'Hare International Airport, Illinois, replaced the 56th FIW as the Command and Control organization for Wurtsmith AFB . At that time, intercepts by the 63d FIS were directed by a manual direction center ( P-23 ) at Willow Run AFS which received radar data from a wider series of search and height surveillance radars in the Great Lakes Area.
It's difficult to find manual direction center in a sentence. 用manual direction center造句挺难的