翅状的

Seed cones borne in groups of 1-6, globose or subglobose, 0.9-1.6(-2.5)× 1-2(-2.5) cm; cone scales 20-30, proximal 2 margins often convex in outline, or all 4 margins ± concave in outline, middle part with or without distinct shoulders at widest point, apex usually recurved, umbo rhombic, distally with 4 or 5(-7) toothlike projections 1-3.5 mm. Seeds 2-5 per cone scale, brown or dark brown, irregularly ellipsoid or multiangular and ± compressed, 4-6.5 × 2-3.5 mm; wings 0.2-0.25 mm wide.

1-6个中的成群忍受的球果，球状或近球状， 0.9-1.6(-2.5)* 1-2(-2.5)厘米；珠鳞20-30，轮廓的下部的2个边缘通常凸面，轮廓的或全部4个边缘多少凹面，有或没有在宽点的离生的肩的中部，先端通常下弯，鳞脐，上部每珠鳞具4或5(-7)种子2-5 1-3.5毫米的齿状预测， 4-6.5 * 2-3.5 毫米；翅0.2-0.25毫米宽。

Spikes few to many flowered; bracts brownish yellow to blackish brown, dull or shining, conchiform, rigid, abaxially minutely papillose toward apex when young, midvein conspicuous, margin scarious, entire, ciliate, fimbriate, or lacerate, apex emarginate, rounded, or acute. Sepals 3; lateral sepals with keel entire, dentate, or ciliate, wings membranous; median sepal enclosing corolla or sometimes ± reduced or obsolete, thin and membranous, 1--3(--5)-veined.

具数花至多花的穗状花序；苞片带褐色黄到微黑的棕色，黯淡的或发亮的，贝壳状，硬质，背面的细小小乳突在先端的，萼片3；侧生萼片具龙骨状全缘，具牙齿的，或具缘毛的，翅膜质；有时中间萼片包围花冠或多少退化或废退，瘦和膜质，(-5)脉。

Female inflorescence oblong-cylindric, oblong, or subglobose; lateral lobes of bracts distinct; wings of nutlet included; leaves irregularly or regularly doubly serrate.

圆筒状雌花序长圆形，长圆形，或近球形；苞片的侧面裂片离生；小坚果的翅包括；不规则的叶或规则地重锯齿。

Leaves odd-pinnate; shrubs or trees, unarmed

茎圆柱状或者具条纹，无翅；果开裂的或不裂但是没有一个加厚的周裂的盖子。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。