... 最佳学习模块 optimal learning model 最佳学习年龄 optimum age 学习技巧与交流 study and communication ...
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In addition to this, there exists a lack of clarity regarding the optimum age for screening and frequency at which to carry out screening.
除此之外，尚不清楚合适筛检的年龄与进行筛检的次数。
The disability caused by a vision deficit has not been quantified and the optimum age and number of occasions for screening have not been established.
因为视力缺损造成的失能尚未被量化，且合适筛检的年龄与筛检次数也不确定。
The expected cost per unit -time for infinite time span is analyzed strictly under the mathematical model constructed, and the optimum age replacement decision is also discussed.
在建立数学模型的基础上，分析了系统长期单位时间内的期望费用，并讨论了最优年龄替换决策。
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