It can be said that, this is a stable development period of Chinese commercial literature.
可以说，这是中国商业文学的稳定发展期。
Its application proves that the system is practical, reliable and stable with high performance price ratio, and the development period is short.
经实际应用证明该系统实用可靠，开发周期短，稳定性好，性价比高。
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.
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。
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