The practice is introduced for refining industrial grade silicon by oxygen injection to the bottom of two-man ladle through self-makings pray nozzle system.
介绍了通过自制的喷嘴系统，向抬包底部喷吹氧气精炼工业硅的生产实践。
Inside, volunteers man two huge iron cauldrons, scooping out a ladle of boiled white rice into each container.
厨房里，志愿者们烧了两口大锅，正在用长柄勺向一个个难民分发烧好的米饭。
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