能源节约的理念产生于1973年的石油危机。Energy conservation as a philosophy was born out of the 1973 oil crisis.化工厂提出增产节约的倡仪,其他工厂随即响应.The chemical plant proposed to increase production and practise economy and other factories presently res...
Often you can pick up a lot of information and valuable advice from a fellow hobbyist.你可以经常从你的业余爱好者的伙伴那里得到许多信息和定贵的建议.Similarly, the numerous business concerns catering to the hobbyist have a tremendous but unknown dollar...