The symptom checklist 90(SCL 90) and neurobehavior evaluation system(NES C2) were used to measure the mood state, mental arithmetic, symbol substitution and visual retention factors.

应用SCL- 90量表及神经行为测试系统（NES- C2 ）测量舰员与学员出海前后的情感状态、心算、符号译码、视觉保留等因子。

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The retention time of cargo operations is a comprehensive index to measure the goods vehicle operating efficiency and the transport organization efficiency.

货物作业停留时间是衡量货车使用效率和运输组织效率的一项综合性指标。

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The rate of passage of digesta through the digestive tract, which is best described by the mean retention time, is an important measure of gut function.

通过速率是消化道功能的一个重要量度，通常采用平均滞留时间来描述食物的通过速率。

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Rahim Kanani: How does the Academy deal with those concerns, and how do you measure your own success in terms of knowledge-retention?

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