下か層そう

noun, noun which may take the genitive case particle 'no'

lower layer; layer beneath

Physical or structural lower layer, such as in geology, soil, atmosphere, or layered objects.

• 地ち層そうの下か層そうから化か石せきが見みつかった。

  Fossils were found in the lower layer of the stratum.

• ケーキの下か層そうはスポンジで、上じょう層そうはクリームだ。

  The lower layer of the cake is sponge, and the upper layer is cream.

noun, noun which may take the genitive case particle 'no'

lower strata; lower classes

Social or economic lower classes; often used in sociological or political contexts.

• その政せい策さくは社しゃ会かいの下か層そうに大おおきな影えい響きょうを与あたえた。

  The policy had a major impact on the lower strata of society.