The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.
地球的自转轴与黄道面呈一定角度。黄道面是地球公转轨道所在的一个假想平面。
Let's say that in the plane we look at the transformation that does rotation by 90 degrees let's say, counterclockwise.
在一个平面上，做90度旋转的变换，逆时针方向。
The sails are mounted at an angle or are given a slight twist, so that the force of wind against them has two components, one of which, in the plane of the sails, causes rotation.
风叶有一个安装角或略有扭曲，因此可将吹来的风分解为两个分力，其中在风叶平面上的分力使风车旋转。
If the body is restricted to motion in a plane, there are three degrees-of-freedom: translation in two coordinate directions and rotation within the plane.
如果该机构是限制于在一个平面运动，那有三个自由度：直线运动在两个坐标方向和在平面内的旋转。
This is what the Scatter widget does, allowing arbitrary in-plane rotation and scaling without breaking the widgets it contains.
这是什么分散小部件，允许任意平面旋转和缩放不打破它所包含的部件。
The static elimination method is used to eliminate the in plane and rotation displacements, thus the time for calculating the eigenvalue problem is decreased greatly.
该文还应用静力凝聚法，凝聚掉平面内位移和转角自由度，这样，求解特征值问题的工作量将大大减少。
In the vertical detection of laser radar, the problem of in-plane target rotation invariance is firstly solved.
在激光雷达垂直探测中，目标平面内旋转不变性是首要解决的问题。
In the vertical detection of laser radar, the problem of in-plane target rotation invariance is firstly solved.
在激光雷达垂直探测中，目标平面内旋转不变性是首要解决的问题。
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