the pith of her argument她论据的核心Using a sharp knife, cut away the pith and peel from both fruits.用一把锋利的刀削去两种水果的外皮和中果皮。Both the rubber and the pith ball are negatively charged.这时,橡胶棒和木髓球两者都带负电荷....
Birth later period, cauline stalk lignification, and the pith ministry inside the bine is formed hollow.生育后期, 茎秆木质化, 而茎内的髓部则形成空心.The pith of this stemlike stele appears rather strongly like collenchyma tissue.茎状中柱的髓显得颇强健...