常見(jiàn)例句雙語(yǔ)例句OK, so here you have the surface x^2+y^2-z^2=4 That's called a hyperboloid because it looks like what you get when you spin a hyperbola around an axis.你們看到x^2+y^2-z^2=4的曲面4,這稱為拋物面,因?yàn)楫?dāng)你把拋物線繞一個(gè)軸旋轉(zhuǎn)就得到了它。This method can also be used for paraboloid and hyperboloid.這種方法也適用于拋物面和雙曲面。The ceiling system should satisfy these requirements that using lower chord ball as fixed point, adapting space change of hyperboloid steel grid, grid settlement under snow load.其天花體系要滿足以屋面網(wǎng)架下弦球?yàn)楣潭c(diǎn)和適應(yīng)雙曲面的空間變化、網(wǎng)架雪荷載作用下沉、熱脹冷縮等變形運(yùn)動(dòng)。 返回 hyperboloid