The fission track analyses show that these samples are under the exhumed partial annealing zone and the apparent ages obtained are cooling ages with part mixed ages.
裂变径迹分析显示样品应处于剥露的部分退火带，其表观年龄主体表现为冷却年龄，部分具混合年龄特征。
With increasing down-hole temperature, average track lengths also decrease, however, annealing anisotropy of fission tracks in apatite increases.
磷灰石中古裂变径迹的长度也随井温升高而减小，而磷灰石古径迹退火的各向异性却随井温升高而增大。
In this paper, we present an algorithm for solving train control problem on a level track with speed limits. The algorithm is based on simulated annealing algorithm and penalty function method.
提出了一种解水平轨道的列车节能控制问题的算法，该算法考虑了无限制速度和有限制速度两种情形，并基于模拟退火算法、动态罚函数法。
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