常見例句Midrib included one closed vascular system and one additional vascular strand. 主脈中維管組織環(huán)狀,封閉,具有一個副維管束;Branchlet pith without vascular strands. 小枝髓沒有維管束。Branchlet pith without vascular strands, pubescent. 小枝的髓沒有維管束,被短柔毛。Venation The distribution of veins (vascular strands) in a leaf. 脈序:是葉片中各葉脈(維管束)的排列分布狀態(tài)。She twirled a strand of hair round her finger. 她把一綹頭發(fā)卷繞在手指上。The Strand is one of London's busiest thoroughfares. 斯特蘭德大街是倫敦最熱鬧的要道之一。 返回 vascular strand