What's the parabolical meaning of "gutter" &"stars" ? 什么是“沟”和“明星”parabolical意思？
Here presented are efficient methods corresponding to two demand patterns: the linear trend and the parabolical trend. 就线性函数和抛物线型函数，提供了寻求最优价格和生产策略的简单方法；
The impulse coupling coefficients of a parabol laser propulsion thruster were measured with a pendulum system using air, He, N2 or Ar as propellant respectively. 实验结果表明：氩气的冲量耦合系数最高，氦气的冲量耦合系数最低；
CALCULATION OF TURBULENT WAKE OF CASCADES WITH ELLIPTICAL AND PARABOLICAL METHODS 用椭圆型、抛物型两种方法计算平面叶栅湍流尾迹
