This procedure was simple and suitable for large scale preparation.

此过程比较简单，适合大量制备。

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CONCLUSION This synthesis route appeared to be convenient, cheap and suitable for large scale preparation.

结论此合成工艺简化了操作、降低了成本、更适宜于大量制备。

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Conclusion This simple method with high yield can be used for laboratory research and large-scale preparation.

结论本法简单、产率较高，可用于实验室研究和大规模制备。

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It said large scale construction projects of any type require years of planning and preparation, even those that are, quote, "on the shelf" generally cannot be undertaken quickly enough to provide timely stimulus to the economy.

NPR: Orszag Eyes Swift Spending Of Stimulus Funds