查询词典 luminous

By improving the optical encapsulation, the luminous flux of LED can be improved great...

改进光学器件的封装技术，可以大幅度提高大功率LED的出光率。

It is helpful to reducing the uncertainty of measuring LED s luminous flux with integrating spheres.

自吸收效应的校正有助于降低用积分球测量光通量的不确定度。

A measure of luminous flux per unit area.

测量单位面积光通量的单位。

Luminous flux is in relation to radiant intensity and wavelength.

光通量与光源的辐射强度有关，还与波长有关。

Long working life: the standard life is 100 thousand hrs when luminous flux goes down 70%.

寿命长：光通量衰减到70%的标准寿命是10万小时。

The illumination is how level of luminous flux is falling on a surface area.

光照是如何光通量水平是一个面积下降。

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。

The luminous flux per unit area at any point on a surface exposed to incident light.

一支蜡烛的点光源在每英尺表面的照度的单位。

It is helpful to reducing the uncertainty of measuring LEDs luminous flux with integrati

介绍了积分球测量中光源体的自吸收效应，提出了两种校正方法。

Company produces energy-saving lamp life of up to 10,000 hours, the product color and tenderness and a high luminous flux, but also made the United States, Canada, Europe and Hong Kong security certification.

公司生产节能灯的寿命可达10，000小时，产品的色温柔和及光通量高，同时也取得美国、加拿大、欧洲及香港等安全认证。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。