叶状

Objective To investigate the effects of demethylbellidifolin on activation of hepatic stellate cells and its underlying mechanism.

目的 研究去甲基雏菊叶龙胆酮对肝星状细胞活化的影响及其机制。

The "twig" is a stick insect, a magnificent specimen of the Phasmatodea clan, its outer sheath a persuasive rendering of striated bark, its tubular body and head punctuated by fake axillary buds and leaf scars—the little knobs and notches that make a twig look twiggy.

那"细枝"是一只竹节虫，它极好地代表了竹节虫目这一神奇的种群，它的外鞘像极了皱巴巴的树皮，以假乱真的花苞和叶痕点缀在它管状的身体和头部——这些细小的凸起和凹陷让这根"细枝"看起来更像是很多细枝拼接起来的。

Leaves alternate; stipule sessile, usually ciliate, persistent; leaf blade palmately lobed or sometimes deeply dissected.

叶互生 托叶无柄，通常纤毛，持久；叶片掌状浅裂或有时深深的多裂。

ResultsMorphological features with diagnostic value were established as follows:①Irregular or round-mesh basket type nucleolus;②Malformed nucleus and lobate nucleus with fine bridge;③Perinuclear microfilaments;④Nuclear bodies;⑤Nuclear inclusion bodies;⑥Marked cell pleomorphism arranged irregularly,like a disordered stone pavement;⑦Strange cell and/or giant cancer cell were found;⑧Peculiar papillae or cell clusters were formed;⑨Specific function structure on the surface of cell differentiated poorly.

结果 确定了具有诊断意义的形态学特征：①不规则奇形核仁或网孔状核仁；②畸形核，分叶核伴细桥－核间桥形成；③核旁微丝；④核体；⑤核包涵体；⑥细胞重度多形性，排列紊乱，似乱石铺堆；⑦出现奇形细胞和/或癌巨细胞；⑧形成奇形乳头和奇形细胞簇；⑨细胞表面特异功能结构分化不良。

Ultimate leaf segments ovate-lanceolate or rhombic, 2–8 × 1–4 cm; styles 2–3 × stylopodium; vittae 3 in each furrow.

末级的叶裂片卵状披针形的或菱形， 2-8 * 1-4 厘米；花柱 2-3 *花柱基；油管3在每棱槽。

Stem (13-)17-40 cm; basal leaf blade ovate-oblong or ovate-triangular, truncate, subcordate, or sometimes decurrent at base.

茎(13-)17-40厘米；基生叶卵状长圆形或卵形三角形，截形，，有时或下延在基部。

Leaves many, basal; leaf blade puberulent to woolly, rarely glabrous or glabrescent, base cuneate to subcordate.

叶很多，基部；对具绵状毛，很少无毛或后脱落，基部楔形到近心形被微柔毛的叶片。

Leaves obovate-oblong, oblanceolate-oblong, or oblong, base subrounded, subcordate, or broadly cuneate

叶倒卵状长圆形，倒披针形长方形，或长圆形，基部近圆形，近心形，或宽楔形 10 Alnus trabeculosa 江南桤木

Leaves alternate, solitary or in fascicles, petiolate to subsessile; leaf blade flat, linear-lanceolate to ovate, base cuneate, rounded, or subcordate, margin entire, apex obtuse or acute.

叶互生，单生或簇生，具叶柄到近无柄；叶片平，线状披针形的到卵形，基部楔形，圆形，或近心形，边缘全缘，先端钝或锐尖。

Calyx of 5 subequal teeth, lanceolate to narrowly triangular; leaves clearly pinnatisect.

5近等长的齿，披针形的到狭三角形的花萼；明显的叶羽状全裂。

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。