non-precision approach

名词 n.
中文释义

英文释义

名词 n.
  1. An instrument approach using a guidance system that provides only horizontal, and not vertical, guidance (such as VOR, NDB, or localizer navigation), requiring the pilot to manually maintain terrain clearance by flying at a predefined safe altitude for each segment of the approach by reference to their altimeter.

词形变化

non-precision approaches plural nonprecision approach alternative

词汇关系

反义词
precision approach
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