本文提出二分岔理论的抛物线近似处理。
In this article, we propose a parabola approximation to the theory of bifurcation.
引入正弦平方势，并在抛物线近似下解析地处理了沟道辐射的瞬时辐射强度和平均辐射强度。
The sine-squared potential is introduced in this paper, and the instantaneous intensity and the average intensity of the channeling radiation are obtained analytically.
当飞机以抛物线飞行并暂时抵消部分重力时，学员将能体验到近似失重的状态。
Participants undergo near-weightlessness as the plane is flown in parabolic maneuvers that create temporary reduced gravity.
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