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- luminous flux per watt 发光率
- The luminous flux per unit area at any point on a surface exposed to incident light. 照度受光照射的表面上任一点单位面积上的通光量
- a measure of luminous flux per unit area. 测量单位面积光通量的单位。
- the luminous flux per unit area at any point on a surface exposed to incident light 照度，受光照射的表面上任一点单位面积上的通光量
- Already dendrimer devices have yielded very high luminous efficiencies (more than 50 candelas per ampere and 40 lumens per watt). 树状体所做的装置已经可以高效率地发光，超过每安培50烛光，每瓦特40流明。
- 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
- By last year the price had fallen to about $2.70 per watt. 到去年为止，这个价格已经下跌到了2.;70美元每瓦特。
- Ratio of the absorbed radiant or luminous flux to the incident flux. 吸收的辐射通量或光通量与入射通量之比。
- Ratio of the transmitted radiant or luminous flux to the incident flux. 透过的辐射通量或光通量与入射通量之比。
- Ratio of the utilized flux to the luminous flux leaving the luminaires. 被利用的光通与离开灯具的光通量之比。
- The first cells, in satellites, cost about $200 per watt of generating power. 第一块太阳能电池，在卫星上，生产每瓦特电能的费用是200美元。
- They create a uniform value of luminous flux due to the high frequency used. 由于使用高频，电子镇流器产生均匀的光通值。
- Of a source. Quotient of the luminous flux emitted and the power consumed. 某一光源发出的光通量与其消耗功率的比值。
- Lighting by means of luminaires with a light distribution such that not more than 10 per cent of the emitted luminous flux reaches the working plane direct, assuming that this plane is unbounded. 采用具有一定配光曲线的灯具进行照明，在不考虑工作面边界时使得直接到达工作面的光通不超过总光通的10%25的照明方式。
- Derate the maximum temperature by 2 degrees per watt of dissipation of customer installed components. 总体奈温幅度的缩减量与消费者每安装一个组件/设备/程序等所损耗的功率数之比为二比一。
- Fluorescents provide 45 to 90 lumens per watt while incandescent typically provide 15-25 lumens. 萤光灯每瓦特能提供45至90流明而在白炽灯典型地仅能提供15至25流明。
- Lighting by means of luminaires with a light distribution such that 90 to 100 per cent of the emitted luminous flux reaches the working plane direct, assuming that this plane is unbounded. 在假定为面积无限大的平面上，有90%25至100%25的辐射光通以直射的方式到达该平面的照明方式。
- The lighting effect rate are higher,Ra are very well,similar The Sunshine and long life ,High Luminous Flux. 特点：发光效率高;显色性好;近似于日光;寿命长;光通量高.
- The nanotubes generate 80 milliliters of hydrogen per hour per watt of ultraviolet light, a record for a photocatalyst-only system. 利用这种奈米管，每小时每瓦特紫外线可产生80毫升氢气，是纯光触媒系统中的最高纪录。
- That part of a luminaire designed to reflect the luminous flux of the lamps in required directions by means of specular reflection. 灯具中被设计成利用镜面反射来在所需的方向上反射光源光通量的那部分。
