伞形的

Two inflorescence types, determinate umbel and determinate capitulum, rarely known in Chinese botanic literature, are introduced.

2介绍了在中国植物学文献中稀见的2种属于有限花序类的花序类型，有限伞形花序和有限头状花序。

Inflorescences axillary, umbel-, corymb-, or racemelike, or a solitary flower; bracts present or absent, when present herbaceous, membranous, or scarious, persistent or caducous.

花序腋生，伞形花序-，伞房花序-，或总状花序状的，或单生的花；苞片宿存或无，当存在时草质，膜质，或者干膜质，宿存或早落。

General description: Fast growing deciduous hard woody tree; does not stand up well to wind; medium-sized; dicotyledon; angiosperm; with umbrella-shaped crown and drooping branches; up to 6-12 m tall; prefers sunny and sheltered position.

概述： 生长迅速的硬木质落叶乔木树。抗风力弱。中等大小，双子叶植物，属被子植物门。有伞形树冠及下垂之枝条。高6至12米。适宜在向阳光及不当风的地点生长。

Esculin, demethylfuropinarine, decursin and columbianadin inhibited growth of human carcinoma cell line KB cell. Umbelliferone renecioate, sphondin and coumestrol inhibited growth of human leukemia cell line HL60 cell.

马栗树皮苷、去甲基呋喃皮纳灵、前胡素和二氢山芹醇当归酸酯对人鼻咽癌细胞株KB细胞的生长有抑制作用；伞形花内酯刘寄奴酸酯、牛防风素和考迈斯托醇对人白血病细胞株HL-60细胞的生长有抑制作用。

Put new switch assembly into gear case with actuating arms against quadrant gear.

用靠在伞形齿轮上的驱动臂将新的开关总成放置进齿轮箱。

Pollcn morphology of 11 Heracleum species was examined under LM andSEM. It is shown that pollens of these specics are all of retangular type andequatorial constricted type, with polar views of 3-splitted round, obtuse triangle ortrianglc. Interspecific variations exhibit in pollen size and exine exolamelle.

对独活属11种植物的花粉进行光镜和扫描电镜观察发现，本属花粉为伞形科中比较进化的矩形型和赤道收缩型；极面观3裂圆形、钝三角形、三角形；花粉大小及外壁纹饰在种间存在明显差异。

Umbel hemispheric to globose, many flowered; pedicels equal; style equaling or longer than ovary; stigma entire, punctiform.

伞形花序半球形的到球形，多花的；花梗等长花柱等长或更长于子房；柱头全缘，点状。

Inflorescences erect or suberect, remaining so after anthesis, subumbellate to shortly racemose, 10--40-flowered; peduncle distinctly shorter than associated leaf petiole.

花序直立或近直立，保持如此在花后，近伞形到短总状，10-40花的；花序梗明显短于旁边的叶柄花梗1-3 厘米。

Yellow flowers clustered in a one-sided umbel of the plant.

黄色的花集中在一边植物的伞形花序上。

Scape yellow-farinose, 2-8cm long; umbel usually 1-5-flowered; bracts lanceolate, yellow-farinose; pedicel 10mm long; calyx bell-shaped, 5-nerved, thinly yellow-farinose, lobes long-triangular at apex; corolla pink or white, salver-shaped, 1.5cm across, faintly fragrant, with conspicuous yellow centre, lobes obcordate, notched at apex; stamens slightly exserted.

花葶被黄粉，长2~8cm ；伞形花序通常有花1~5朵；苞片披针形，被黄粉；花梗长约10mm ；花萼钟状，具5条粗脉，被薄粉，裂片尖长三角形；花冠粉红色或白色，高脚碟状，直径1.5cm ，有微香具明显的黄心，裂片倒心形，顶端凹缺；雄蕊略露出于花冠筒外。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐