proving ground

名词 n.
中文释义

英文释义

名词 n.
  1. A terrain or installation for testing weapons, military equipment, or tactics.
  2. A venue or project in which new technologies, methods, or techniques are tested. figuratively
    — To test the new equipment and vehicles that will work to the high voltage a.c. system, a proving ground was sought at a convenient point, and the lines from Colchester to Clacton and Walton have been selected.

词形变化

proving grounds plural
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