0 having an oval shape -- 椭圆（形）的
1 Elliptical language has parts missing, so that it is sometimes difficult to understand. -- （语言等）省略的，晦涩的，隐晦的
His message was written in a deliberately elliptical style. 他的留言故意写得很隐晦。
Elliptical patterns indicate domalbasinal structures with synclastic curvature, that is, principal curvatures of the same sign.
Figure 5 depicts the maximum wave amplitude around the coast of an elliptical island whose major axis is twice the minor axis.
However, the approximate elliptical vortices become elongated to an arbitrarily great extent in this limit, whereas the actual solutions do not.
The other case is an elliptical sheet, $x2+ y2 = 1, enclosing a stagnant core.
During periodic sloshing, the air core sustained shape transformations, assuming an elliptical crosssection a t the end, and then collapsed forming a pair of vortices.
The local variations in the strain field around a vortex disturb the vortex, preventing it from retaining a simple, elliptical shape.
The rate a t which the instability destroys the elliptical solution is, however, very slow as figure 17 illustrates.
They are elliptical, flattened, of a light yellowish green colour and measure 1-6 mm. in length, and hatch after seven to nine days.
