The raise of this goal is set in a distinctive background of the age.
这一目标的提出，有着鲜明的时代背景。
The system of bone age assessment without film is put forward under this background.
本文所述无胶片化骨龄评价系统的研制，就是在此背景下提出的。
Does the factory check the age and background of the employee?
工厂是否对员工的年龄和背景做核查？
Does the factory check the age and background of the employee?
工厂是否对员工的年龄和背景做核查？
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