在不到10年时间里，白斑鱼数量逐渐恢复，这个被齐佩瓦族称之为“食物仓库”的湖泊得以再度打开商业性捕鱼之门。

Less than tenyears later the walleye had rebounded; the lake that the Chippewa call"the food storehouse" was again open to commercial fishing.

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齐40块蒸汽驱先导试验取得了较为理想的开发效果，但由于受油藏非均质性的影响，蒸汽驱过程中出现了蒸汽波及效率低、稳产时间短等现象。

Steam drive pilot test in Block Qi40 has achieved ideal development result, but the sweep efficiency is low and stable production period is short because of reservoir heterogeneity.

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本文考虑可数状态离散时间齐次马氏链平稳分布的存在与唯一性。

Existence and uniqueness of the stationary distribution of countable discrete time homogeneous Markov chains is discussed in this paper.

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