1、The finding suggests that the barbs and barbules evolved before the rachis in feathers.
該發(fā)現(xiàn)表明，羽毛中的羽枝和小羽枝是先于羽軸進化出來的。

2、That is interesting because the rachis seems to aid in flight.
這就很有趣了，因為羽軸似乎有助于飛行。

3、Branchlets and inflorescence rachis sparsely pubescent or puberulent.
小枝和花序軸疏生短柔毛或者被微柔毛。

4、Pedicels of spikelet pair equal, as long as rachis internode; upper glume with 0. 5-1 mm mucro.
小穗對的花梗等于，倍于軸節(jié)間；上面穎片具0。5 - 1毫米短尖頭。

rachis翻譯

n. 脊椎, 脊柱, 花序軸【醫(yī)】 脊柱, 脊椎, 花序軸, 葉軸 詳情