An experimental solar lighting system in an above-ground cupola follows the sun with moving plastic mirrors . 在地面上一個(gè)鐘形閣樓里的試驗(yàn)性太陽(yáng)照明系統(tǒng)用移動(dòng)的塑料鏡跟蹤太陽(yáng)。
42 do you have ventilation and lighting system 工廠有足夠的通風(fēng)和照明系統(tǒng)嗎
Emergency escape lighting systems ; german version en 50172 : 2004 應(yīng)急安全出口照明系統(tǒng)
Recommended practice for installing exterior lighting systems 安裝外部照明系統(tǒng)的推薦規(guī)程
Review on lighting system design for manned spacecraft 艙外航天服的工效學(xué)問(wèn)題及其研究方法
Standard for safety for low voltage landscape lighting systems 低壓風(fēng)景照明系統(tǒng)的安全標(biāo)準(zhǔn)
Glossary of terms for aircraft electrical and lighting systems 飛機(jī)電氣及照明系統(tǒng)術(shù)語(yǔ)匯編
Low level path marking and lighting systems 低等級(jí)道路標(biāo)志和照明系統(tǒng)
Recommended practice for installing industrial lighting systems 安裝工業(yè)照明系統(tǒng)的推薦規(guī)程