wind rating meaning in English
额定风速
Examples
- Draw a conclusion : the social cost of wind power generation is lower ; third , the real cost of wind power generation are studied by model of wind distribution and generation amount and calculating the cost of wind power generation ; the factors affecting wind power generation cost are studied by sensitivities with a real example and draw a conclusion : average wind rate is most influence to wind power generation cost and the ways of reducing wind power generation cost are discussed . fourth , the trend of wind power generation cost is analysised and draw a conclusion : wind power generation cost is dropping ; this paper uses many qualitative and quantitative methods and uses a real example to study wind power generation cost and advanced some ways solving high wind power generation cost
得出；平均风速的变动，对风电成本影响最大；同时分析了减低风电成本的途径； 4本文从三个方面对我国风电成本的走势进行了分析，得出风电成本在未来的发展趋势是逐渐下降的；本文运用了定性、定量方法，以实例为原则，首次比较全面地从社会总成本角度对风电成本进行研究，同时对影响风力发电的因素进行了比较深入的研究，提出了解决风力发电发展中存在问题的方法。 - The wind rates of roots blower with these various kinds of three - lobe circular arc rotor are calculated and comparison between their performances is carried out . it is found that three - lobe rotor with external - internal circular arc and cycloid can produce the largest air volume . comparing the air pulsation produced by cylinder rotor and helix rotor , and proof that the structure of helix rotor can reduce the noise of roots blower
本文给出了罗茨鼓风机三种不同的圆弧转子型线的参数方程(外圆弧及其包络线型、内圆弧及其包络线型、和内外圆弧加摆线型) ，还给出了这三种转子的径距比( r _ a a )的极值，并进行比较，得到：内外圆弧加摆线线型是最优线型这一结论；为降低罗茨风机的噪声，将传统的直叶转子改成扭叶转子。 - Secondly , the thesis bring ups to make use of mathematics clustering analysis method , combine with analysis the accident occur rate of each occupation ( business enterprise ) , the death rate of employment injury , the severely wounded rate of employment injury , the slight wound rate of employment injury , the death rate of occupational disease , the occur rate of occupational disease and the circumstance of employment injury overhead and so on , to classify the risk grades of occupation ( enterprise ) . according to the clustering consequence , the grade differential rate of the
其次，论文运用数学聚类分析方法，结合各行业（企业）的事故发生率、工伤死亡率、工伤重伤率、工伤轻伤率、职业病死亡率、职业病病伤率以及工伤费用支出情况等指标进行行业（企业）风险等级分类。根据分类结果，合理确定各行业风险等级差别费率。再次，论文通过对国内外现行工伤保险费率浮动方法的研究，提出了结合企业千人死亡率、千人重伤率、千人轻伤率和支收率指标来确定企业费率浮动的方法。