具沟的

Stem often strongly angled and fluted, base densely clothed with fibrous leaf remains.

茎通常强烈的具角和具沟，基部密覆盖有纤维状的叶的残留。

Leaves of sprouts with petioles terete, 2-5 cm, adaxially canaliculate, tomentose; leaf blade lanceolate or ovate-lanceolate, 10-15 cm. Male catkin 3-4 cm; bracts suborbicular, 3-5 mm, usually caducous, base cuneate, margin laciniate, with brown lobes.

圆柱状的菜芽具叶柄的叶，2-5厘米，正面具沟，被绒毛；叶片披针形或卵状披针形，10-15 厘米雄性柔荑花序3-4厘米；近圆形的苞片，3-5毫米，通常早落，基部楔形，条裂的边缘，具棕色裂片。

Canaliculate:Having one or more longitudinal groove s or channels.

具沟的，花条痕状的：具有一条或多条纵向沟槽或管道的。

Canaliculate:Having one or more longitudinal grooves or channels.

具沟的，花条痕状的：具有一条或多条纵向沟槽或管道的。

The results showed that the pollen grains of B.biternata is spheroidal and the diameter is(27.0μm) with 3-colposate,the pollen exine sculpture with concentraed echinate

结果显示：金盏银盘(B.Biternata)的花粉粒为球形，直径27.0μm，具三孔沟，花粉粒表面具密集的刺状雕纹

Parviflora is spheroidal and diameter is 25.5μm with 3-colposate,the pollen exine sculpture with concentrated echinate

小花鬼针草(B.parviflora)的花粉粒为球形，直径25.5μm，具三孔沟，花粉粒表面具密集的刺状雕纹

The pollen grain of B.bipinnata is prolate and the size is 37.0μm×26.7μm with 3-colposate,the pollen exine sculpture with thin echinate.

婆婆针(B.bipinnata)的花粉粒为长球形，大小为37.0μm×26.7μm，具三孔沟，花粉粒表面具稀疏的刺状雕纹。

One of the longitudinal ridges on the surface of a gastropod shell.

具沟的，花条痕状的具有一条或多条纵向沟槽或管道的

This paper listed a great number of records of dinoflagellate cysts with transapical ar-chaeopyte suture in marine and nonmarine deposits and pointed out that the cysts with this structure could be divided into two types which represented respectively two branches of later Cretaceous from marine pyrrophyta.One branch was represented by Palaeoperidi-nium with bipesioid type of reflection plate;the other was represented by Saeptodinium with bipesioid or cinctioid type of reflection plate.

摘 要：本文列举了大量具过顶古口缝的沟鞭藻囊孢在海相和非海相沉积中的记录，指出具这一构造的沟鞭藻囊孢可以细分成两个亚类，分别代表晚白垩世从海相多甲藻类家族中分化出的两个分支：一支以Palaeoperidinium为代表，具bipesioid型反映板式；另一支以Saeptodinium为代表，具bipesioid或cinctioid型反映板式。

The height of the steps on crystal faces increases with the increment of oversaturation degree of gold. The density of the steps adds with the rise of alka...

这一结论得到河南祁雨沟金矿、阶段自然金晶体形态的证实，并与其它金矿的地质事实和人工合成实验结果相符，其对金矿成矿和找矿研究具一定的指导意义。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失