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luminosity

/ˌluːmɪˈnɒsɪti/ /ˌluːməˈnɑːsəti/

Meanings
noun

亮度，光辉.

The state of being luminous, or a luminous object; brilliance or radiance

Examples :

"The full moon's luminosity lit up the entire backyard, making it easy to see even without a flashlight. "
满月的亮度照亮了整个后院，即使没有手电筒也能看得清楚。
physics astronomy energy appearance
noun

亮度, 光度

The ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor

Examples :

"The physics lab carefully measured the luminosity of the new LED bulb to determine its efficiency in converting electrical power into visible light compared to the total energy it emitted. "
物理实验室仔细测量了这种新型LED灯泡的发光效率 (光视效能)，以确定它在将电能转化为可见光方面的效率，并将其与它所发出的总能量进行比较。
physics energy astronomy science

Related Words

Illustration understand

understand verb

/ˌɞndəɹˈstand/ /(ˌ)ʌndəˈstænd/ /ˌʌndɚˈstænd/

理解，明白，领会。

"My teacher explained the new math concept, and I understood it perfectly. "

我的老师解释了新的数学概念，我完全领会了。

Illustration brilliance

brilliance noun

/ˈbɹɪljən(t)s/

光辉，灿烂。

"The Christmas lights' brilliance illuminated the entire street. "

圣诞彩灯的光辉照亮了整条街道。

Illustration astronomers

astronomers noun

/əˈstrɑnəmərz/

天文學家

"Astronomers use telescopes to study planets and stars. "

天文學家使用望遠鏡來研究行星和恆星。

Illustration determine

determine verb

/dɪˈtɜːmɪn/ /dɪˈtɝmɪn/

确定， delimitation。

"The teacher determined the rules for the classroom project, setting clear limits on the length of presentations. "

老师为课堂项目确定了规则，明确规定了演示的时长限制。

Illustration luminous

luminous adjective

/ˈluːmɪnəs/

发光的，明亮的。

"The fireflies created a luminous glow in the backyard. "

萤火虫在后院营造出一种明亮的光辉。

Illustration efficiency

efficiency noun

/ɪˈfɪʃn̩si/

效率，效能

"The efficiency of the planning department is deplorable."

规划部门的工作效率实在太差了。

Illustration carefully

carefully adverb

/ˈkɛːfli/ /ˈkɛɹfli/

小心地，谨慎地，细致地

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

他小心地听着母亲的担忧，为她的失望感到难过。(Tā xiǎoxīn de tīngzhe mǔqīn de dānyōu, wèi tā de shīwàng gǎndào nánguò.)

Illustration electrical

electrical noun

/ɪˈlɛktɹɪkəl/

电气工程师，电机工程师

"My brother is a talented electrical. "

我弟弟是个很有才华的电气工程师。

Illustration flashlight

flashlight noun

/ˈflæʃˌlaɪt/

手电筒, 电筒。

"My flashlight helped me find my keys after I locked myself out of the house. "

我用手电筒在把自己锁在门外后找到了钥匙。

Illustration wavelength

wavelength noun

/ˈweɪvlɛŋ(k)θ/ /ˈweɪvˌlɛŋ(k)θ/

波长

"The radio waves used in the school's wireless network have a specific wavelength. "

学校无线网络使用的无线电波具有特定的波长。

Illustration converting

converting verb

/kənˈvɜːrtɪŋ/ /ˈkɑːnvɜːrtɪŋ/

转换，使转化。

"A kettle converts water into steam."

水壶把水转换成蒸汽。

Illustration directions

directions noun

/daɪˈɹɛk.ʃənz/

方向，方位。

"Keep going in the same direction."

保持朝著相同的方向走。