短語詞組短語penetration depth of london 倫敦穿透深度magnetic penetration depth 穿透深度penetration depth of superconductors 超導(dǎo)躰的穿透深度flow penetration depth 氣流穿透深度Definition of Penetration Depth 針刺深度的確定flux penetration depth [電磁]磁通穿透深度Penetration depth studies 趨膚深度研究penetration depth calculation 侵深計(jì)算 返回 penetration depth