单词	drag-- viscous
释义	drag， viscous黏性阻力
随便看	dahlak kebr (dehalak deset) dahlem dahlen dahlenburg dahlenwarsleben dahlgren damping system dahlgren gun dahlgren, john adolphus bernard dahlgren polar monitoring service dahlia dahlia arborea regel dahlia arborea regel-- d. anemoneflora hort. dahlia arborea regel; d. anemoneflora hort. dahlia coccinea dahlia cocinea cav dahlia cocinea cav，; d.bidentifola salisb.; d. cerbantesii lag.; d. crocea poir，; fair dahlia dahlia coronata hort dahlia coronata hort-- crowned dahlia dahlia coronata hort; crowned dahlia dahlia-- dahlia dahlia; dahlia dahlia excelsa bent. dahlia imperialis roezl dahlia imperialis roezl---- candelabra dahlia dahlia imperialis roezl; vell tree dahlia，; candelabra dahlia