实践表明此种新纤维及后部产品有其广阔的前景，将产生显著经济效益和社会效益。
It has been proved that the mew fibre and its end products must have a bright future and a considerable social and economical benefit.
指出实施需求侧管理将对供用电双方产生巨大的经济效益，并对改善环境，减少污染带来显著影响。
DSM will bring great economic benefits for both power suppliers and consumers, it will also bring remarkable effect on improving environment and reducing pollution.
焊前不预热不产生裂纹、可改善劳动条件，降低工艺成本，具有显著的经济效益和社会效益。
The electrode has the following advantages : a high resistance to cracking, low cost, high economical profit and society significance.
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