Grazing not only directly affects above ground part of grass communities and grassland soil, also indirectly influences underground productivity and material turnover.

放牧作为一种干扰因子，通过对群落地上部分和土壤的影响，导致地下部分的生产力和物质周转率的变化。

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This paper introduces the construction process and material formular of pipeline rehabilitation with inner lining turnover technique.

文章介绍了旧管道内衬翻转修复技术的施工工艺及材料配方。

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Recycled plastic material with a black plastic pallets as a turnover, although relatively cheap, but the use of periodic terms, it is not economical.

用黑色的回收料塑料栈板与塑胶栈板当做周转，虽然价格相对便宜，但对使用周期性来讲，是不经济的做法。

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All these outlets demand a huge turnover of material, and the most obvious target for a desperate sketch-writer is politics.

ECONOMIST: Blair and the comedians

As Blue Note's business began to grow, he and Wolff realized that they had to have a regular turnover of new material if the label was going to keep its place in the newly expanding world of jazz microgroove records.

NPR: 'Blue Note Records, The Biography'