nuclear hydrogen detection meter

短语

词形变化

nuclear hydrogen detection meters 复数 nuclear hydrogen detection meters

别名

NHD

释义与例句

n.
  1. 1.

    A device that contains a radioactive source to emit high velocity neutrons into a roof system. Reflecting neutrons are measured by a gauge that is used to detect hydrogen; the quantity of hydrogen detected may be linked to the pressure of water.

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