obscuration

n. 遮蔽, 晦涩, 费解, 掩星

词形变化

obscurations 复数 obscurations

释义与例句

n.
  1. 1.

    The state of being obscured.

    可数 不可数
  2. 2.

    A unit of measurement used in particular for smoke detectors which respond to absorption of light by smoke, in percent absorption per unit length, e.g. % obs/ft, % obs/m.

    可数 不可数

词源

From Latin obscūrātiō. By surface analysis, obscure + -ation.

来源：wiktionary