Conclusion The ropivacaine in 0.25% and 0.375% might have perfect blockage effect that should not add the adrenaline.

结论0.25%和0.375%罗哌卡因溶液用于臂丛阻滞效果完善且安全可靠，不必加肾上腺素。

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The conclusion is that the key to raise the experimental accuracy lies in reducing and correcting the systematic errors due to blockage effect at high angles of attack.

结论是：提高大攻角实验数据准确度的关键在于减少和修正由于阻塞效应引起的系统误差。

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Abstract: When performing experiments in a towing tank, if the tank is small relative to the ship's model, the blockage effect cannot be neglected and must be corrected.

摘要：在水池进行船模试验，特别在水池尺度较小、船模尺度相对较大时，必然遇到阻塞效应问题，必须予以修正。

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In fact, the lack of a single market in money is a serious blockage in the economy that can have a direct effect on companies.

ECONOMIST: Borders and barriers