二回

A deciduous Asian treeMelia azedarach,widely cultivated and naturalized in the southern United States and having bipinnately compound leaves,clusters of purplish flowers,and yellow,globose,poisonous fruits.

楝产于亚洲的落叶乔木，，有二回羽养复叶、紫色花簇以及黄色球形、有毒的果实，在美国南部被广泛引种栽培

After the early spring, sprouts the scale bud, thedifferent variety peony's scale bud shape is different, is dividedthe circular, the egg circular, the long oval, the long oval, thecolor also respectively has the difference.

中国牡丹绝大多数品种属二回羽状复叶，但也有少数品种为一回羽状复叶。叶型有大、中、小长叶；大、中、小圆叶之分。

The leaf is bout or 2 Hui Yu shape are cracked greatly, lobation is fine, the bine is lower Xie Youbing, grow 2 – 3 millimeter, upside does not have a handle.

叶为一回或二回羽状深裂，裂片细，茎下部的叶有柄，长2–3毫米，上部无柄。

As a result of analysis to many of the results of experiment, checked up on specimens, field investigation and combining with the theories of palaeobotany, comparative morphology, evolutional morphology of vascular plants and taxonomy, it can be concluded as following: the primitive sorts of Cycadaceae are the sorts that pinnate leafs are dichotomy; among these, the sort that pinnate leafs are tripinnate-dichotomy is most primitive, from this sort gradually evolve to bipinnate-dichotomy, to only for monopinnate-dichotomy, from this sort evolve to the sorts that pinnate leafs are simply pinna; among the sorts of simply pinna, the species that segments of megasporophyll possess much more triplicate to monodichotomy are most primitive.

经过大量的实验结果分析、查阅标本和野外调查，结合古植物学、比较形态学、演化植物学和分类学等理论进行分析，认为苏铁科原始的类型为羽叶呈二歧状分叉的种类，其中最原始的又是羽叶呈三回二歧状分叉的种类，从这个羽叶类型逐渐演化出一回二歧状分叉的羽叶类型，再演化出羽叶为单羽状的类型；而单羽状叶的类群中，又以大孢子叶侧裂片具三回、二回及一回二歧状分叉数量多的种类为最原始，而侧裂片二歧状分叉数量少的为较进化，侧裂片无二歧分叉的如拳叶苏铁类为最进化的种类。

Tree ferns of temperate Australasia having bipinnatifid or tripinnatifid fronds and usually marginal sori; in some classification systems placed in family Cyatheaceae.

分布于温带澳大拉西亚的树蕨，叶二回羽状分裂或三回羽状分裂，囊群位于叶的边缘；在一些分类中归入桫椤科。

Leaves tufted; stipes 3-10 cm long, glabrous, narrowly winged near apex; lamina oblong-ovate to triangular, generally 10-12 cm long, bi- or tripinnate; pinnae 3-5 pairs, oblong-ovate, sessile; rachis narrowly winged; pinnules pinnately dissected, segments linear.

叶簇生；叶柄长3-10毫米，无毛，近顶端有狭翅；叶片长卵圆形至三角形，通常长10-12厘米，二回或三回羽状分裂；羽片3-5对，互生或近对生，长卵圆形，无柄，羽轴有狭翅；小羽片羽状细裂；末回裂片细长，线形。

The Chinese peony overwhelming majority variety is the bipinnate duplicate leaf, but also has the minority variety is a chapter of duplicate leaf.

中国牡丹绝大多数品种属二回羽状复叶，但也有少数品种为一回羽状复叶。

Any of the ultimate leaflets of a bipinnately compound leaf.

小羽片，二回羽片二回羽片结构的一种根本小叶

The pinnate division of a pinna in a bipinnately compound leaf, or the ultimate divisions of a leaf which is more than twice pinnately compound.

小羽片 Pinnule 二回或二回以上羽状复叶的末级羽片。

After the early spring, sprouts the scale bud, the different variety peony's scale bud shape is different, is divided the circular, the egg circular, the long oval, the long oval, the color also respectively has the difference.

中国牡丹绝大多数品种属二回羽状复叶，但也有少数品种为一回羽状复叶。叶型有大、中、小长叶；大、中、小圆叶之分。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。