suction point

名词 n.
中文释义

英文释义

名词 n.
  1. A hole in the floor exposing a pit beneath the foundation of a building, used for soil suction in radon mitigation.
    — A five-inch suction point (the size of a CD) that will be drilled through the floor in an unfinished storage area or your utility room.

词形变化

suction points plural

词源

suction + point
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