• Its first stage is a souped-up version of one of the shuttle's solid-fuel rockets; its top stage is a similarly muscled-up model of the Saturn's massive J2 engines.

    该火箭的第一级是发射航天飞机用的固体燃料火箭的马力加强版;顶端一级是同样增强了马力的用在土星火箭上的J2巨型发动机。

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  • Conclusion: The small organic compound J2 could mediate immunosuppression.

    结论:小分子有机化合物J 2具有一定的免疫抑制作用。

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  • J2 method - inlet of inclined plane and horizontal plane into 60 degree Angle.

    J2 制法--进料口的斜面与水平面成60度角。

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  • A precision analytical equation to relative motion of formation flying satellites for J2 perturbation is presented.

    给出了一种描述J2摄动情况下编队飞行卫星相对运动的精确解析模型。

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  • Objective To study the effect of a small-molecule compound J2 in the inhibition of skin allograft rejection in mice.

    目的探讨小分子免疫抑制药J2抑制小鼠皮肤移植排斥反应的作用。

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  • The variation equation of the satellite orbit elements under both J2 and drag perturbations was derived based on the Gauss perturbation equation.

    基于高斯摄动方程,推导了卫星在同时考虑J2和大气摄动情况下的轨道根数变化方程。

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  • The constitutive relationship of bucket foundation was analyzed by the principle of J2 flow theory and isotropic based on a deformable distinct element method.

    利用J 2流动理论各向同性硬化原理,结合离散元方法,建立筒型基础土体本构关系。

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  • Then a control method considering the J2 perturbation based on Encke's linearization equation is proposed to maintain the relative motion of the constellation.

    进而导出了带有J2项摄动的环绕星相对运动方程,并给出了基于惯性笛卡尔坐标系运动学变量的相对轨道控制方法。

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  • Two impulsive control strategys for formation keeping were put forward with regard to the problem that satellites formation could be destroyed under J2 perturbation.

    针对卫星编队轨道构形在J2摄动干扰作用下被破坏的问题,给出了两种构形保持脉冲控制策略。

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  • Two impulsive control strategys for formation keeping were put forward with regard to the problem that satellites formation could be destroyed under J2 perturbation.

    针对卫星编队轨道构形在J2摄动干扰作用下被破坏的问题,给出了两种构形保持脉冲控制策略。

    youdao

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