伞状的

Grouping.Grouping is acharacteristic of dermatitis herpetiformis,herpes simplex,herpes zoster,and late syphilitic eruptions.Small lesions arranged around alarge one are said to be in acorymbose arrangement.Concentric annular lesions are typical of borderline leprosy and erythema multiforme.These are sometimes said to be in acockade pattern,like the tricolor cockade hats worn by French revolutionists.Flea and other arthropod bites are usually grouped and linear(breakfast-lunch-and-dinner sign).Grouped lesions of various sizes may be termed agminated.

群集群集是疱疹样皮炎、单纯疱疹、带状疱疹和梅毒疹的特点小的皮损围绕大的皮损排列称为伞状排列同心圆形皮损是中间界线类麻风和多形红斑的典型皮损这种皮损有时被描述为帽章的形式，就象法国革命者所戴三色帽章跳蚤和其他节肢动物的咬痕常呈群集或线性分布各种大小的皮损聚集在一起术语称为"簇集"

Based on the theory of large eddy simulation and the method of VOF , the initial breakup process of fuel liquid jet, which eject from the nozzle exit at the time scale of micro-second level, is investigated. The mechanism of primary atomization is analyzed, and the initial breakup model of liquid jet is presented. By modeling and numerical simulation of atomization for a diesel nozzle under the given conditions, the initial umbrella-like spray shapes are obtained, which fits better with the experimental results. Meanwhile, the droplets secondary breakup process, such as leeward RT breakup, dumbbell-like breakup and droplets coalescence, etc. are exhibited visually.

基于大涡模拟LES理论和VOF方法，考察了燃油喷雾初始时刻即时间尺度为微秒级的液柱破碎过程，分析了初始破碎的机理，给出了该时间尺度下液柱初始破碎过程的模型；通过对一特定条件下的柴油机喷油器的建模和喷雾过程的大涡数值模拟，获得了液柱初始时刻"伞状头部"的喷雾形态，所得计算结果与相应的试验数据符合较好；数值模拟还直观地展现了液滴背风RT破碎、哑铃型破碎以及液滴的聚集融合等液滴的二次雾化过程。

Any of various shrubs or small trees of the genus Strophanthus having whorled leaves and showy flowers of various colors in dense and few-flowered corymbose clusters; some have poisonous seeds.

属于毒毛旋花子属的灌木或小树，有螺纹的叶子和密集的多彩的花和极少的伞状花序丛；一些有毒种子。

Grouping.Grouping is acharacteristic of dermatitis herpetiformis,herpes simplex,herpes zoster,and late syphilitic eruptions.Small lesions arranged around alarge one are said to be in acorymbose arrangement.Concentric annular lesions are typical of borderline leprosy and erythema multiforme.These are sometimes said to be in acockade pattern,like the tricolor cockade hats worn by French revolutionists.Flea and other arthropod bites are usually grouped and linear(breakfast-lunch-and-dinner sign).Grouped lesions of various sizes may be termed agminated.

群集群集是疱疹样皮炎、单纯疱疹、带状疱疹和梅毒疹的特点小的皮损围绕大的皮损排列称为伞状排列同心圆形皮损是中间界线类麻风和多形红斑的典型皮损这种皮损有时被描述为帽章的形式，就象法国革命者所戴三色帽章跳蚤和其他节肢动物的咬痕常呈群集或线性分布各种大小的皮损聚集在一起术语称为&簇集&

Perianth lobes of female flowers usually 4 or 5, much shorter than ovary, or strongly reduced, not corniculate at apex; achene 6-10-ribbed; male inflorescences usually with receptacle, rarely cymose; female inflorescences with discoid receptacle and bract

通常的雌花的花被裂片4或5，远短于子房，或者强烈降低，并非具小角状突起的在先端；瘦果6-10 肋；雄花序通常具花托，很少聚伞状；雌花序具盘状的花托和苞片 9 Elatostema 楼梯草属

Sometimes armed with stinging hairs; epidermal cells of leaves, sometimes stems, perianths mostly with prominent cystoliths punctiform to linear; Leaves alternate or opposite, stipules present, rarely absent; leaf blade simple. Inflorescences cymose, paniculate, racemose, spicate, or cluster-capitate, usually formed from glomerules, sometimes crowded on common enlarged cuplike or discoid receptacle, rarely reduced into a single flower. Flowers unisexual, rarely bisexual in partial flowers; actinomorphic, very small,(1-)4- or 5-merous, rarely perianth absent in female flowers.

有时具有蛰毛的刺；叶的表皮细胞，有时茎和花被的表皮细胞大部分有显著的点状或线形的乳状体；叶互生或者对生，托叶有，很少无；单叶花序聚伞状，圆锥状，总状，穗状，或者丛生头状花序，花单性，部分花两性；辐射对称，小，(1-)4-或者5瓣，很少在雌花内无花被。

Leaves reduced upwards. Inflorescence branching, umbels compound, terminal on stem and branches; bracts entire, 2–3-lobed to pinnate or absent; rays 5–20, those of primary terminal umbel stout, spreading-ascending or diffuse; bracteoles similar to bracts or absent; umbellules 10–30-flowered.

叶向上变小花序分枝，复伞状花序，在茎和分枝上顶生；苞片全缘，2-3浅裂到羽状的或无；伞辐5-20，那些初级顶生伞形花序坚固的，平展上升的或铺散的；小苞片类似苞片或无；小伞形花序10-30开花。

Inflorescence branching, umbels compound, terminal; bracts mostly absent, occasionally 1–4, linear or similar to uppermost leaf; rays few, usually 5–15; bracteoles present, usually linear, entire, apex rarely lobed; umbellules usually many-flowered.

叶向上变小花序分枝，复伞状花序，顶生；苞片多数无的，偶有1-4，线形或类似于最上部的的叶；伞辐很少的，通常5-15；小苞片存在，通常线形，全缘，先端很少浅裂；小伞形花序通常多花的。

It is the soil mass maintained by the umbrella-shaped root system of trees during the geological history,and it is formed by the interactive compression of tree load and growth of main root system and by the differential compaction of surrounding soil mass;in other words,it also is a kind of the sedimentary textite or sedimentary structure formed under the influences of biological process.

它是地质历史中，树木伞状根系所维系的土体，在树木的自重荷载和主干根系生长的相互挤压作用下与外围土体的差异压实造成的；换言之，它又是一种在生物作用影响下形成的沉积结构体或沉积构造。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷