Until today some people in reading canvas still can be obstructed by the painting technical problems in language.

直到今天有些人在阅读油画时还会被油画本体语言的技术问题而障碍着。

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In forests, visual signals can be seen only at short distances, where they are not obstructed by trees.

在森林中，视觉信号只能在没有树木遮挡的地方在短距离内被看到。

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Conclusion FPLT could be obtained after PLE was injected to the target lung, and target bronchia obstructed with broncho-occluder by catheter.

结论通过靶肺支气管肺泡灌注ple后靶支气管封堵器堵塞可达到功能性肺叶切除术目的。

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Federal prosecutors have at least considered a criminal investigation into whether the congressman obstructed justice by allegedly asking another woman who claimed to be his lover to lie about their relationship.

CNN: Condit passes private polygraph, lawyer says