单词	pencil slate
释义	pencil slate 笔板岩
随便看	displacement states displacement stiffness coefficient displacement stream displacement stress displacement subsidy displacement substoichiometry displacement surface displacement synthesis Displacement System displacement table displacement tactics displacement tank displacement temporal response displacement tensor displacement test displacement test on main dam displacement theory displacement therapy displacement therapy of nasal sinosers displacement therapy of nasal sinuses displacement therapy of the nasal sinuses Displacement thermal expansion stress range displacement thickener displacement thickness displacement thickness of boundary layer