The influence of surfacing material and processing parameters on the quality of light beam powder surfacing layer is investigated.

研究了堆焊材料组成和堆焊工艺参数对光束粉末堆焊质量的影响规律。

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Second, we must strengthen institutional construction. We must supervise and inspect strictly each of the links from raw material production, processing, circulation to consumption.

第二，要加强制度建设，从原料生产、加工、流通、消费每个环节都要进行严格监督和检查。

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This is partly because isolating the oligomers is both costly and time-consuming - processing hundreds of kilograms of dried plant material often yields only a few milligrams of a single product.

这可能部分源于分离寡聚物成本高耗时长——从数百公斤干燥的植物样本中可能只能分离得到数毫克的纯品。

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Third party processing could ensure the material is enriched only to the point needed for civilian purposes, and below the level called for in nuclear weapons.

VOA: standard.2009.10.04

This approach will, however, require intelligent robots which can work by themselves for years, digging and processing the desirable material.

ECONOMIST: Mining asteroids: Going platinum | The