The results showed that the studied steel was made of ferrite and pearlite, when adding mass V and N to the steel it was benefit to offer a mount of precipitated phase and improve the strength.
结果表明：研制钢是由铁素体和珠光体组成，向钢中添加高的V和N元素，有利于增加更多的弥散析出相，提高其强度。
This paper reported the results of laboratory study and industrial development of the new type non chrome ferrite W-201 catalyst for n-butene oxidative dehydrogenation to butadiene.
本文报导了丁烯氧化脱氢制丁二烯新型无铬铁系w - 201催化剂的实验室研究和工业生产结果。
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