lunar gravity短语¹⁴⁴⁹⁷²⁺² 基本例句 月球重力 It is concluded that for the lunar missions not aiming at improving lunar gravity, such as the ' Chang Er1', the reduced dynamic method of orbit determination is effective in absorbing gravity errors. 结果表明对于一个不将月球重力场作为主要科学目标的探月计划如“嫦娥1号”,减缩动力学方法是一个简单、有效地提高环月飞行器定轨精度的方法。 cnki