Pilot test of linear water injection may be carried out to improve the sweep efficiency of the injected water and improve the effect of block development.

开展线性注水先导试验，提高注入水的波及系数，改善区块开发效果。

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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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This algorithm combines the block Pilot-aided LS channel estimation algorithm with a phase tracking algorithm, which can compensate the phase rotation caused by the residual carrier frequency offset.

该算法在传统的基于块状导频的Ls信道估计算法的基础上，加入了相位跟踪算法，补偿了由残余频偏带来的相位旋转。

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At a division of Intel, employees are trying a pilot program where they block out several hours a week for concentrated work, not responding to emails or going to meetings.

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