双二次方程
- 网络biquadratic equation
双二次方程-
它们又引出待解的双二次方程。双杀：用一次投球使二人同时出局。
Double kill : A play in which two outs are made with one pitch .
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根据后三角包边玻璃的测量要求，在获得其点云已消噪的情况下，应用B样条法构造出玻璃双二次加权曲面参数方程。
According to the measuring requirement of wrapping-side glass , the bi-quadratic parameter equation of glass was constructed by B-spline method on condition that the point cloud was obtained and was noise-ridding .