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Flowers small to medium-sized, bracteate and often bracteolate, bisexual or unisexual, actinomorphic or rarely zygomorphic, hypogynous to epigynous, floral cup shallow to urn-shaped, sometimes absent; sepals 4 or 5(–10), sometimes absent, imbricate, usually persistent; petals absent or 4 or 5, yellow, white, greenish or red, often ribbonlike and circinate in bud, caducous; stamens 4, 5, or many, free, rarely arranged in 2 whorls with the inner whorl staminodal, development of polyandrous androecia centripetal or centrifugal; anthers basifixed, thecae mostly bisporangiate, each opening by two valves or a simple longitudinal slit, or monosporangiate and opening by a single valve (Exbucklandia, Hamamelis and the genera of the S hemisphere), connective protruding; disk scales sometimes present between stamens and carpels.

花小对中型，具苞片和通常，萼片4或5(-10)，有时无，覆瓦状，通常宿存；花瓣无或者4-5，黄色，白色，带绿色或者红，通常在芽期带状的并且拳卷，早落；雄蕊4，5，或者很多，离生，很少2轮生并且退化雄蕊内部轮生，多雄蕊的雄蕊群向心或离花药基着大多为的囊bisporangiate，以二裂爿或一单纵裂缝每开阔的，花盘鳞片有时片在雄蕊和心皮之间存在。

Based on this, the algorithm by which the complete test sets for combinational circuits can be genera...

显然，本文提出的方法具有更多的优点。

The results showed that there were 27 species turf weeds belonged to 24 genera and 15 families,and the species of Compositae took the most.

结果表明：校园常见的杂草主要包括15科24属27种，其中菊科种类最多。

Any of various plants of various genera of the family Compositae having flowers that can be dried without loss of form or color.

在干后形状和颜色都不改变的一种菊科植物。

Any of several poison ous plants of the genera Conium and Cicuta,such as the poison hemlock.

毒芹属植物几种毒芹属及铁杉属植物中有毒植物的一种，如毒芹

Forty eight characteristic species belonging to 27 genera are described herein, and 4 new conodont species are established.

本文系统描述了其中对生物地层划分有重要意义的27属48个牙形石关键种，建立了4个新种。

At present they include over 24.000 species, 2.400 genera and 210 families, a surely underestimated number, inhabiting sea and continental waters, semiterrestrial habitats, or living in symbiotic relationships with other organisms.

牠们目前包含有24000种、2400属和210个科，无疑是个低估的数目，其栖息在和大陆棚的、半陆栖地，或者存活在有共生关系的微生物间。

Among them Rosa and Cotoneaster are most abundant, have respectively 13 species and 12 species, secondly Rubus and Prunus have respectively 9 species and 8 species, these 4 genera account for 70% of Rosaceae wild fruit trees of Qinghai province. There are 3 fruit types that are pome, aggregate and drupe, among them the pome and aggregate have a greater proportion, respectively share 45% and 40% of the whole species numbers.

其中以蔷薇属和栒子属最为丰富，分别有13种、12种，其次悬钩子属和李属分别有9种、8种，这4个属的种类占青海蔷薇科野生果树的70%；果实类型有梨果、聚合果、核果3种类型，其中梨果类、聚合果类占有较大比例，分别占总种数的45%和40%。

The process flow of frozen boiled crawfish ,the genera of microorganism and its heat resistance and pathogenicity were analyzed in this article.

分析了出口冻煮小龙虾的生产工艺、控制微生物的种类及其相应的耐热性和致病隐患等方面，得出蒸煮是控制小龙虾生产加工过程中微生物的有效方法，并且得出影响蒸煮的因素有蒸煮数量、加工季节和虾体大小。

In April 2002, 33 species of planktonic crustacea in 26 genera (11 Copepoda and 22 Cladocera) were sampled from 17 sites in the middle and lower reaches of the Hanjiang River, the largest tributary in the middle reaches of the Yangtze River.

2002年4月，在汉江中下游从丹江口坝上至其河口沿途设17个采样点，共采集到浮游甲壳动物10科26属33种，其中桡足类4科10属11种，枝角类6科16属22种。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。