黄金的实用性不大，除了用于储存价值，这与一般商品不同（如石油，它的消费速度和开采和精炼的速度一样快），因此它的供应 /需求时间表有独特的特性。
Gold has little utility except as a store of value, unlike most commodities (like oil, which is consumed as quickly as it's extracted and refined), so its supply/demand schedule has unusual traits.
盛产石油的国家（如安哥拉与尼日利亚），甚至连饱受战乱的国家苏丹都提供了飙升的增长数据，而且多数的外国投资都流入到了原油精炼行业。
Oil-producing countries such as Angola and Nigeria, and even war-torn Sudan, have supplied the soaring growth figures, and much of the foreign investment has gone into extractive industries.
适用于铜镍合金的焊接和堆焊。如化工设备、海水淡化、海洋结构、造船、石油精炼、食品工业以及耐蚀装置和容器等。
Particularly suitable for the joining and overlay welding of copper nickel such as machinery, desalting of seawater, ship-building, oil refinery, and food processing industries.
应用推荐