在网格环境中，并行系统本身非对称带来的复杂性、多用户环境以及并行任务粒度较粗等因素给负载平衡问题的解决带来了新的困难。

In grid environment, the parallel systems inherent complexity, the mult-user environment and the large granularity of parallel tasks and so on, bring new difficulty to load balance.

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这是建立，粗动作，平衡与协调。

This builds, gross motor skills, balance and coordination.

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相同污染浓度条件下，粗颗粒沉积物中重金属具有较高的初期释放量和释放强度；平衡释放浓度随粒度减小略有增大。

Under the condition of same polluted concentration, heavy metals in coarse sediment are released with greater amount and higher intensity dUring initial stage.

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