If you're more of a long term investor and willing to wait a decade or more, you may want to start studying pu 'er tea.

如果你更多的是长期投资者，愿意等待十年或更久，你可能想要开始研究普洱茶了。

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The volcano's Pu 'u 'o 'o crater collapsed on Saturday, and a 0.33-mile-long (0.5-kilometer-long) fissure ripped open on a separate region of the volcano.

上周六，火山的Pu ' u ' o ' o火山口崩裂，并且在一个分离的区域撕开了一条0.5公里长的裂缝。

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This paper briefly introduced two methods for anticorrosion of special piece and repaired mouth of long transportation pipeline, i. e , flame plastic spraying and high-build PU anticorrosive paint.

简介了长输管道异型管件及补口防腐的两种方法，即高膜厚PU防腐涂料刷涂法和火焰塑料喷涂方法。

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