positive control

短语

[计] 完全控制, 正控制

释义与例句

n.
  1. 1.

    The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation.

    不可数 航空 商务 工程
  2. 2.

    In dog handling, the state of having affirmative physical or non-physical control of a dog.

    不可数