无叶的

Any of various orchids of the genus Bletia having pseudo-bulbs and erect leafless racemes of large purple or pink flowers.

勃利特属的任何一种兰花，具有假的鳞茎，笔直、无叶的总状花序，大的，紫色或粉红色的花。

It resembles the psilophyte Rhynia from the Rhynie chert of the Devonian period.

库克逊蕨属有无叶的纤细二叉分支状的茎，成熟孢子囊和孢子充分角质化，该植物与在泥盆纪 Rhynie 燧石中找到的裸蕨中的羊角蕨属很相像。

To furnish with a tip.brodiaea having an umbel of violet or blue-violet flowers atop a leafless stalk; northern Oregon to southern California.

在无叶的茎干顶端长有由紫色或蓝紫色花组成的伞状花序的卜若地；生长于俄勒冈北部至加利福尼亚南部地区。

Even above the hissing boom of the larchwood, that spread its bristling, leafless, wolfish darkness on the down-slope, she heard the tinkle as of tiny water-bells.

这声音甚至比那落叶松林的嘶嘶的怒号声更高，落时松林在山坡上，遍布着忿怒的、无叶的、狞恶的暗影。

Stems angular, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 7–9 pairs of leaflets; leaflets petiolulate, green on both surfaces, fasciated or fasciated lanceolate, 5–7 × 1.5–1.7 cm, both surfaces glabrous, base subcordate to obliquely truncate or rounded, margin acutely incised serrate, apex rounded to acute; cauline leaves: stipules green, falcate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer and narrower higher up stem.

茎具角，无毛；胚根叶：托叶使成褐色，膜，背面无毛；叶柄无毛；叶片具7-9对小叶；具小叶柄的小叶，绿色在两面，扁化或者扁化， 5-7 * 1.5-1.7 厘米，两面无毛，基部近心形在斜截形或圆形，边缘尖锐锐裂状锯齿，先端圆形的到锐尖；茎生叶托叶绿色，镰刀形，草本，给锐裂状锯齿镶边；叶片象胚根叶的那但是高的更少和狭窄的小叶向上茎。

Using field studies and environmental modeling, Edwards and Donoghue found that the Pereskia species already showed water use patterns that are similar to the leafless, stem-succulent cacti.

经过野外研究和制作环境模型，Edwards和Donoghue 发现Pereskia的种属已经显现出和无叶的，茎干多汁的仙人掌相似的水利用方式。

Jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds.

联合的几乎是无叶的沙漠灌木，有鳞状的叶子和红色肉质的种子。

The flowfield and performance of a centrifugal compressor was predicted and analysed, which was composed of a Krain's impeller and two types of vaneless diffuser specially: one was constant area vaneless diffuser and the other was the straight-wall. The results show that the efficiency of the straight-wall vaneless diffuser is obviously lower than that of the constant area, and a separate flow occurs nearby the exit of the centrifugal impeller with the straight-wall diffuser. However, the type of vaneless diffuser has little influence on the aerodynamics performance of the centrifugal impeller. Finally, it is suggested that the constant-area vaneless diffuser should be selected as the downstream extended area of the centrifugal impeller during the prediction for the centrifugal impeller.

对Krain叶轮后带等面积与直壁两种形式的无叶扩压器离心压缩机内部流场进行了计算与分析，结果表明：直壁型无叶扩压器离心压缩机的效率低于等面积无叶扩压器离心压缩机的效率；直壁型无叶扩压器使得叶轮出口的流动出现分离；扩压器的形式对离心叶轮的整体气动性能影响并不大；在进行离心叶轮数值研究时，叶轮后的延伸区最好采用等面积无叶扩压器，以尽量减小无叶扩压器所引起的计算误差。

Like the ripest fruit in late autumn, about to drop silently onto the damp earth.

像树上的果子，在秋天的无叶的枝上，摇摇欲坠，摇摇欲坠。

Like the ripest fruit in late autumn, about to drop silently onto the damp earth.

像树上的果子，在秋天的无叶的枝上，摇摇欲坠，摇摇欲坠。沉默地落在潮湿的泥土上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。