The limit factors of biodegradation and how to enhance its efficiency are pointed out.

指出了限制微生物降解的因素以及如何提高降解效率的措施。

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Phytoremediation has not been widely applied in the field, since a lot of limit factors are involved in affecting the efficiency of phytoremediation.

由于植物修复效率的限制性因素较多，影响了其应用。

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These two factors limit the success and cost effectiveness of this approach as a long term solution.

这两个因素会限制此方法作为长期解决方案的成功和高效性。

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But he adds that while these factors limit downside, they are offset by a valuation nearing 52-week highs, more challenging year-over-year comparisons, and greater relative exposure to discretionary spending.

FORBES: Connect

We expect these factors to limit consumer demand for 3D TVs for the foreseeable future.

FORBES: 3D Isn't HD, And Won't Boost Best Buy Stock

Merloni also shows how family firms can defy the factors that often limit their growth.

ECONOMIST: Manufacturing in Europe: How to make it | The