substrate

美 [ˈsʌbˌstreɪt]
英 ['sʌb.streɪt]
  • n.底物;基底;基层;底层
  • 网络基板;基材;基质
复数:substrates  
substrate
n.
1.
底物;底层;基底;基层a substance or layer which is under sth or on which sth happens, for example the surface on which a living thing grows and feeds

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