the property possessed by a round shape that is flattened at the poles;
"the oblateness of the planet"
ellipticity的用法和樣例:
例句
用作名詞 (n.)
The ellipticity only influences casing damage caused by outer extruding force. 橢圓度僅對均勻外擠壓力導致套管破壞有較大影響。
In the previous works only the uniform wall-thickness elbows were studied.However, the elbow thickness is varied with the bending radius and ellipticity on the cross section. 以往對彎頭的研究只考慮壁厚均勻不變的情況,但是實際上彎頭的壁厚是沿著彎曲半徑變化的,並且彎頭的截面也具有一定的橢圓度。