二次抛物线模型曾广泛应用于养分效应的研究，然而这种对称模型与多数情况不符。
The quadratic parabola model was once widely used to study the effects of nutrients. Such a symmetric model, however, does not accord with the practical situation in most cases.
研究发现，当蚌密度在每立方米6.25个到每立方米31.25个的区间内，时效模型呈具有极大值的抛物线函数。
Statistics showed that the time-effect models are parabola functions with maximum values when the mussel population density ranges from 6.25 to 31.25 per cubic meter.
本文利用抛物线与成长曲线两种模型对今明两年我国小型拖拉机销售市场进行预测。
In this paper, using the parabola model aod the growing curve model, I will analyze the sale market of small model tractors over the country in this year and the next year.
比较了考虑横向剪切变形的几种力学模型，提出了一种新的假定剪应力沿板厚呈抛物线分布的分层模型。
This paper compared several mechanical models with transverse shear deformation and put forward a kind of layer model assuming that shear stresses vary parabolically through the plate thickness.
通过对迈步腿质心进行抛物线运动规划，使两足机器人在动态步行时达到侧向自平衡，从而消除了前向和侧向模型的偶合误差；
In the parametric design, motion of the swing leg of biped robot is planned into a parabola to keep self balance in lateral plane and avoid coupling error;
在完善和充实抛物线理论的基础上，系统地提出抛物线理论多跨索道设计。该设计模型包括承载索的设计计算与选型、货物运输方式方法的确定、工作索及绞盘机的选择。
This paper presents multi-span engineering ropeway design based on improved parabola theory, including design, calculation and selection of skyline, freightage system and way, working line and yarder.
在完善和充实抛物线理论的基础上，系统地提出抛物线理论多跨索道设计。该设计模型包括承载索的设计计算与选型、货物运输方式方法的确定、工作索及绞盘机的选择。
This paper presents multi-span engineering ropeway design based on improved parabola theory, including design, calculation and selection of skyline, freightage system and way, working line and yarder.
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