Not only does the country not pay a parental allowance, its gap with Germany is also wide in terms of day-care services and support for dual-income households.
我想不仅仅是发放“父母津贴”，日本跟德国的差距还表现在儿童托管服务质量以及对双职工家庭的特殊资助。
This thesis fills the research gap from the dual-theoretical and empirical research perspective.
本论文从理论和实证研究的双重角度填补研究空白。
The paper offers a dual problem for the semi-infinite convex programming by using the directional derivative with zero dual gap.
本文对半无限凸规划提出一个用方向导数表述的对偶问题，其对偶间隙为零。
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