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单词 cissoid
释义

cissoid /'sɪsɒɪd/

英汉-汉英词典
adj. 凹边的,蔓叶线的
词组 | 习惯用语
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  • seaside n. 海滨;海边 adj. 海边的;海滨的
  • cistern n. 水箱;水池;贮水器
  • scissor vt. 用剪刀剪;删去 n. 剪刀
  • acidosis n. 酸中毒,酸毒症;酸液过多症
cissoid n. 蔓叶线;蔓叶类曲线; adj. 凹边的;

网络短语:
prolate cissoid 长蔓
oblique cissoid 斜蔓叶线
crunodal cissoid 结点蔓叶线
cissoid lines 蔓叶线型
cissoid d 蔓叶
cuspidal cissoid 尖点蔓叶线
cissoid conformation 顺式构象
acnodal cissoid 孤点蔓叶线
curtate cissoid 短幅蔓叶线
中文百科

蔓叶线

Cisoide de Diocles (línea roja). El segmento OA es igual a OC menos OB.
Cissoid of Diocles construction

蔓叶线,有时又叫双蔓叶线是 Diocle 在公元前180年发现的曲线。

蔓叶线的标准曲线方程为:

y^2  = \frac{{x^3 }}{{2a - x}}

其中a是常数。

英语百科

Cissoid 蔓叶线

In geometry, a cissoid is a curve generated from two given curves C1, C2 and a point O (the pole). Let L be a variable line passing through O and intersecting C1 at P1 and C2 at P2. Let P be the point on L so that OP = P1P2. (There are actually two such points but P is chosen so that P is in the same direction from O as P2 is from P1.) Then the locus of such points P is defined to be the cissoid of the curves C1, C2 relative to O.

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更新时间:2025/6/20 14:36:43