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bifolium
bifolium Palæogr. (baɪˈfəʊlɪəm) Pl. -ia. [f. bi-2 + L. folium leaf.] A pair of conjoint leaves.1938 E. A. Lowe Codices Latini Antiquiores iii. 283 Foll. 3..composed of a bifolium and a single leaf. Ibid. 284 Ruling on the hair-side central opening, four bifolia at a time before folding. 1957 N. R. K...
Oxford English Dictionary
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Bifolium
The collection of points P forms the bifolium. References
External links
Bifolium at MathWorld
Plane curves
Algebraic curves
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Bifolium (disambiguation)
A bifolium is a type of mathematical curve. It can also refer to:
Animals
A genus of brachiopods
Plants
Orchid genera now considered synonyms of Neottia
Bifolium Petiver ex Nieuwland
Bifolium
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Oncidium bifolium
Oncidium bifolium is a species of orchid ranging from Brazil to northern Argentina. References
External links
bifolium
Orchids of Argentina
Orchids of Brazil
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Galium bifolium
Galium bifolium is a species of flowering plant in the coffee family known by the common names twinleaf bedstraw and low mountain bedstraw. Galium bifolium is an annual herb standing erect to a maximum height of about 15 centimeters. Leaves grow in whorls of four divided into two pairs.
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Maianthemum bifolium
Maianthemum bifolium (false lily of the valley or May lily) is often a localized common rhizomatous flowering plant, native from western Europe (including References
bifolium
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Macrolobium
Macrolobium amplexans
Macrolobium angustifolium
Macrolobium anomalum
Macrolobium aracaense
Macrolobium archeri
Macrolobium arenarium
Macrolobium bifolium
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银砂槐属
下属分类
银砂槐 Ammodendron bifolium (Pall.) Yakovlev
Ammodendron conollyi Boiss.
Ammodendron eichwaldii Ledeb.
Ammodendron karelinii Fisch. & C.A.Mey.
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Scilla bifolia
Anthericum bifolium (L.) Scop. [1771]
Genlisa bifolia (L.) Raf. [1840]
Hyacinthus bifolia (L.) E.H.L.Krause in Sturm [1906]
Ornithogalum bifolium (L.)
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لقلقي ثنائي الأوراق
لقلقي ثنائي الأوراق (الاسم العلمي:Pelargonium bifolium) هو من النباتات يتبع اللقلقي من ال الغرنوقية.
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Podalyria argentea
It should not be confused with Podalyria argentea Willd., which is a synonym for a quite different species, Ammodendron bifolium, from Russia and Xinjiang
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双叶线
双叶线(Bifolium)是方程式如下的四次平面曲线
极座标下的方程式为
双叶线的形状为两片相邻的叶子。
在a=1时,其总面积约为0.1。
制图方式
考虑经过O点的一个圆C,以及图在O点上的切线L。 参考资料
相关条目
笛卡儿叶形线
双纽线
8字型线
外部连结
Bifolium at MathWorld
曲线
代数曲线
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Maianthemum canadense
Maianthemum have flower parts in sets of 3, M. canadense plants have flowers with four tepals and four stamens, as in the very closely related Maianthemum bifolium M. bifolium is found in temperate Eurasia, and M. dilatatum is essentially a coastal species found from Alaska south to northwest California as well as
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根纳季·帕夫洛维奇·雅科夫列夫
由雅科夫列夫命名或鉴定的植物
Ammodendron bifolium (Pall.)Yakovlev
Calia secundiflora (Ortega) Yakovlev
Keiserlingia koreensis (Nakai) Yakovlev
Sophora gibbosa (
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Ammodendron
Species
Ammodendron includes five accepted species:
Ammodendron bifolium (Pall.)
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