Starting at the top of Listing 3, policies are valid for a set period of time.
首先从清单3的顶部开始,策略在一个固定时间段内有效。
The calculating formulation of the period for the main handle to remain at position "1" is derived. It provides a scientific basis for smooth operation when starting the train.
推导出列车起动时主手柄在1位停留时间的计算公式,为列车起动时平稳操纵提供科学依据。
The starting point and growing source of the contemporary on the spot writing style is the reportage which springs up rapidly at the new period.
新时期迅猛崛起的报告文学,是当代纪实文学文体的出发点和生长源。
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