坐标 坐標 zuò biāo coordinate (geometry) 金字塔 jīn zì tǎ pyramid (building or structure) 平分 píng fēn to divide evenly / to bisect (geometry) / deuce (tennis) / tied score syn 几何 幾何 jǐ hé geometry / (literary) how much syn 定点 定點 dìng diǎn to determine a location / designated / appointed / specific / fixed (time) / fixed point (geometry) / fixed-point (number) syn 原点 原點 yuán diǎn starting point / square one / (coordinate geometry) origin 叠罗汉 疊羅漢 dié luó hàn human pyramid syn 几何学 幾何學 jǐ hé xué geometry 象限 xiàng xiàn quadrant (in coordinate geometry) 下线 下線 xià xiàn to go offline / (of a product) to roll off the assembly line / downline (person below oneself in a pyramid scheme) syn 位移 wèi yí (geometry) displacement (a vector quantity) syn 平移 píng yí translation (geometry) syn 对角线 對角線 duì jiǎo xiàn (geometry) a diagonal 四边形 四邊形 sì biān xíng (geometry) quadrilateral 切线 切線 qiē xiàn tangent line (geometry) 边长 邊長 biān cháng (geometry) side length 母线 母線 mǔ xiàn generating line / generatrix (in geometry) / bus (in electronics) / bus bar 坐标系 座標系 zuò biāo xì coordinate system (geometry) 圆柱体 圓柱體 yuán zhù tǐ cylinder (geometry) 法线 法線 fǎ xiàn (geometry) normal line 正则 正則 zhèng zé regular (figure in geometry) 大圆 大圓 dà yuán great circle (in spherical geometry) 全等 quán děng (geometry) congruent 交叉点 交叉點 jiāo chā diǎn junction / crossroads / (geometry) point of intersection 射影 shè yǐng (geometry) projection / (Chinese mythology) creature that spits sand to make people ill 抛物面 拋物面 pāo wù miàn (geometry) paraboloid 四角形 sì jiǎo xíng (geometry) quadrangle / quadrilateral 解析几何 解析幾何 jiě xī jǐ hé analytic geometry / coordinate geometry 立体几何 立體幾何 lì tǐ jǐ hé solid geometry 平面几何 平面幾何 píng miàn jǐ hé plane geometry 生态金字塔 生態金字塔 shēng tài jīn zì tǎ ecological pyramid / trophic pyramid 解析几何学 解析幾何學 jiě xī jǐ hé xué analytic geometry / coordinate geometry 画法几何 畫法幾何 huà fǎ jǐ hé descriptive geometry (three-dimensional geometry using projections and elevations) 罗式几何 羅式幾何 luó shì jǐ hé hyperbolic geometry / Lobachevskian geometry 罗氏几何 羅氏幾何 luó shì jǐ hé hyperbolic geometry / Lobachevskian geometry 源－接收器几何 源－接收器幾何 source-receiver geometry / field geometry 三角锥 三角錐 sān jiǎo zhuī triangular pyramid (math.) 角锥 角錐 jiǎo zhuī pyramid 层压式推销 層壓式推銷 céng yā shì tuī xiāo pyramid scheme 人口金字塔 rén kǒu jīn zì da population pyramid 金字塔底层 金字塔底層 bottom of the pyramid 代数几何学 代數幾何學 dài shù jǐ hé xué algebraic geometry 二次曲面 èr cì qū miàn quadric surface (geometry) 二次曲线 二次曲線 èr cì qū xiàn quadratic curve (geometry) / conic 非欧几何 非歐幾何 fēi ōu jǐ hé non-Euclidean geometry 非欧几何学 非歐幾何學 fēi ōu jǐ hé xué non-Euclidean geometry 分形几何 分形幾何 fēn xíng jǐ hé fractal geometry 分形几何学 分形幾何學 fēn xíng jǐ hé xué fractal geometry 概形 gài xíng scheme (in algebraic geometry) 黎曼几何 黎曼幾何 lí màn jǐ hé (math.) Riemannian geometry 黎曼几何学 黎曼幾何學 lí màn jǐ hé xué Riemannian geometry 欧式几何 歐式幾何 ōu shì jǐ hé Euclidean geometry 欧式几何学 歐式幾何學 ōu shì jǐ hé xué Euclidean geometry 三次曲线 三次曲線 sān cì qū xiàn cubic curve (geometry) 射影几何学 射影幾何學 shè yǐng jǐ hé xué projective geometry 微分几何 微分幾何 wēi fēn jǐ hé differential geometry 微分几何学 微分幾何學 wēi fēn jǐ hé xué differential geometry 坐标法 座標法 zuò biāo fǎ method of coordinates (geometry) 反演 fǎn yǎn inversion (geometry) 二次曲 èr cì qū quadratic curve / conic section (geometry) 代数几何 代數幾何 dài shù jǐ hé algebraic geometry 内在几何 內在幾何 nèi zài jǐ hé intrinsic geometry 内在几何学 內在幾何學 nèi zài jǐ hé xué intrinsic geometry 内在坐标 內在座標 nèi zài zuò biāo intrinsic coordinates (geometry) 全等图形 全等圖形 quán děng tú xíng congruent figure (geometry) 同轴圆弧 同軸圓弧 tóng zhóu yuán hú coaxial circular arc / concentric arc (in spherical geometry) 埃尔朗根纲领 埃爾朗根綱領 āi ěr lǎng gēn gāng lǐng Felix Klein's Erlangen program (1872) on geometry and group theory 大圆圈 大圓圈 dà yuán quān great circle (in spherical geometry) 射影几何 射影幾何 shè yǐng jǐ hé projective geometry 尺规作图 尺規作圖 chǐ guī zuò tú ruler and compass construction (geometry) 平行公设 平行公設 píng xíng gōng shè the parallel postulate (geometry) / Euclid's fifth postulate 投影几何 投影幾何 tóu yǐng jǐ hé projective geometry / same as 射影幾何|射影几何 投影几何学 投影幾何學 tóu yǐng jǐ hé xué projective geometry / same as 射影幾何學|射影几何学 斜方型 xié fāng xíng trapezium (geometry) 欧氏几何学 歐氏幾何學 ōu shì jǐ hé xué Euclidean geometry 正半轴 正半軸 zhèng bàn zhóu positive semiaxis (in coordinate geometry) 罗巴切夫斯基 羅巴切夫斯基 luó bā qiè fū sī jī Nikolai Ivanovich Lobachevsky (1793-1856), one of the discoverers of non-Euclidean geometry 双曲抛物面 雙曲拋物面 shuāng qū pāo wù miàn (geometry) hyperbolic paraboloid 鲍耶 鮑耶 bào yē János Bolyai (1802-1860), one of the discoverers of non-Euclidean geometry 双曲几何 雙曲幾何 shuāng qū jǐ hé hyperbolic geometry 变后掠翼飞机 biàn hòu lüè yì fēi jī variable-geometry wing aircraft 堆芯布置 duī xìn bù zhì core configuration / core geometry 堆芯几何 堆芯幾何 core configuration / core geometry 阵列设计 陣列設計 zhèn liè shè jì array design / array geometry / seismic pattern 阵列几何 陣列幾何 array design / array geometry / seismic pattern 球面几何 球面幾何 qiú miàn jǐ hé spherical geometry 共线 共線 gòng xiàn (geometry) collinear / concurrency (a single road serving as a section of multiple routes) 共面 gòng miàn (geometry) coplanar 