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The ratio of luminous flux at a specific wavelength to the radiant flux at the same wavelength.
中文意思:
发光效率一定波长的光量对同样波长的辐射光量的比例


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The ratio of 5 to 10 eaqules that of 1 to 2. 5与10之比,相当于1与2之比。
The ratio of 5 to 10 is equal to 1 to 2. 5与10之比,相当于1与2之比。
The ratio of boys to girls in this class is two to one. 护理人员和医生的比例为二比一。
The ratio of envelope to floor area is such to make even a doubling of the cost of the envelope marginal when compared with the cost of producing the structure of the building. 相比于建筑结构生产的费用,维护结构与地板的比率使得维护结构的费用增倍。
The ratio of fixed local telephone income and long distance telephone income in the total operation income decreased by 2.49% and 1.06% respectively compared with the same period in 2005, while the ratio of mobile telecommunication income and data communi 固定本地电话和长途电话业务收入占总收入的比重比2005年同期分别下降了2.49%和1.06%,而移动通信和数据通信业务收入所占比重则分别上升了2.89%和0.71%。
The ratio of luminous flux at a specific wavelength to the radiant flux at the same wavelength. 发光效率一定波长的光量对同样波长的辐射光量的比例
The ratio of mobile group data users among all mobile telephone users increased from the 18.0% measured during the end of last year to 26.4%. 移动分组数据用户在移动电话用户中所占比重从去年底的18.0%上升到26.4%。
The ratio of nursing staff to doctors is 2:1. 护理人员和医生的比例为二比一。
The ratio of outpatient to inpatient cases was highest among young women (ranging from 5 : 1 to 6 : 1). 年轻女性中门诊患者对比住院患者的比率最高(为从5:1到6:1)。
The ratio of output power from an amplifier system, to the input power. Gain is normally measured in decibels. 放大系统的输出功率与输入功率之比,增益通常用分贝表示。
The ratio of primary,secondary, and teriary Industries is 20.5:49.6:29.9. At the moment, the primary and tertiary Industries are the major powerhouses promoting economic growth. 三次产业结构调整为20.5:49.6:29.9,工业和服务业(第三产业)是推动全市经济增长的主要动力。
 
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