The Harmonious Distortion characteristic of telemetry seismic data acquisition systems is an important performance index, which affects the quality of seismic acquisition data directly.

谐波畸变特性是遥测地震数据采集系统的一项重要性能指标，直接影响地震数据采集的质量。

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It adopts distortion index to describe the inlet pressure distortion, which could only be studied through distortion experiments before.

该软件利用综合畸变指数来描述进气畸变，实现了以往只有通过畸变试验才能进行的对进气畸变的研究。

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By modifying, the separation zone behind the shaft and turn loss at upwind side are all reduced. Modifying inlet maintains high pressure recovery, and the distortion index is reduced by 74% at most.

改型进气道减小了输出轴背风侧的分离和迎风侧的转弯损失，使其既保持了高总压恢复系数，且畸变指数最大降低了74%。

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The addition of UnitedHealth will not cause a change in the level of the Dow, as the index committee will tweak its divisor prior to the Sept. 24 open to prevent any distortion.

FORBES: Dow Committee Skips Over Apple, Picks UnitedHealth To Replace Kraft