网络释义专业释义英英释义
semi-major axis 长半轴 ; [天] 半长径 ; 长半径
semi major axis 长半径
major axis of cam [机] 凸轮长轴
major axis of flexspline [机] 柔轮长轴
Major axis pressing 顺血管长轴压迫法
semi-major axis of satellite orbit [航] 卫星轨道长半径
angular semi-major axis [天] 角半长径
major axis
- n. the longest axis of an ellipse or ellipsoid; passes through the two foci
以上来源于: WordNet
柯林斯英汉双解大词典
major axis
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1.
N the longer or longest axis of an ellipse or ellipsoid (椭圆或椭圆体的)较长或最长轴
双语例句权威例句
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The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
第三定律（周期定律）：各个行星绕太阳公转周期的平方和它们的椭圆轨道的半长轴的立方成正比。
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A prolate spheroid is generated by revolving an ellipse about its major axis.
扁长球体是将一个椭圆体依其主轴旋转而成的。
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When the disc is in the open position, the seal major axis is greater then the disc diameter and they do not touch.
阀盘处于打开位置时，密封件长轴大于阀盘直径，且相互不接触。
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