They see it as a source of raw materials , especially oil , which they need for their own development 他们将它视为原材料,特别是其本国发展所需要的石油,的来源地。
The chemical industry depends very heavily on petroleum , natural gas , and natural gas liquids as sources of raw materials 化学工业的原材料来源严重依赖石油、天然气和液态天然气。
The system is best suited for apartment blocks which can provide a captive source of raw material , according to its designer , a mohan 根据设计师阿莫汗表示,这项系统最好设置在住宅区,比较能提供原料的来源。
Because of its steady performance , much more sources of raw material and low cost , the study and development of zinc - air battery are always paid more attention 锌空气电池因其具有性能稳定、比能量高、放电电流大、原材料来源广泛、成本低廉等优点一直受到广泛重视。