The physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forests.

杉木中伐材的物理力学性能不如天然林中伐材。

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The results show that the physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forest.

结果表明：杉间材物理力学性质较天然林差。为杉木的定向培育。

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Natalie, a high-school junior who started cutting in middle school, explains that it was a way to distract herself from feelings of rejection and helplessness she felt she couldn't bear.

娜塔莉是一个高中的低年级学生，初中时开始切割，解释说，这是一个分散被拒绝和无助感的方式，她觉得她自己承受不了这些感受。

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But the component parts -- cutting taxes for middle-class families, cutting taxes for small businesses that are hiring our veterans and hiring the long-term unemployed, putting teachers back in the classroom -- here in the state of Hawaii, you have a bunch of kids who are going to school four days a week because of budget problems.

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This will result in a nasty bout of price-cutting, middle-man slaying and industry reputation tarnishing.

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Romney actually proposes cutting income tax rates across the board for everyone by 20%, including the middle class, as Reagan did in cutting income tax rates by 25% in 1981, which spawned the generation long, 1982 to 2007 boom.

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