Thursday, April 25, 2024
Tuesday, October 24, 2023
Sunday, May 5, 2024
下列选项中()是中国大陆的芯片厂家。A、晶元B、光磊C、大连路美D、旭明...
Saturday, April 29, 2023
不适用于高强度气体放灯安全要求标准GB19652的灯有()A、单端荧光灯B、高压钠灯C、金属卤化物灯D、高压汞灯...
Thursday, September 15, 2022
可移式落地灯和台灯灯具对于易碎部件、其他部件的冲击能量测试要求分别为()A、0.35Nm;0.2NmB、0.35Nm;0.35NmC、0.35Nm;0.50Nm...
Thursday, April 25, 2024
支架:安装荧光灯管的简易灯具,可吸顶、吊杆或吊链式安装。根据镇流器不同,有分为()和()支架。...
Thursday, April 25, 2024
Monday, February 6, 2023
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Thursday, April 25, 2024
Wednesday, March 29, 2023
隧道照明灯具和柱式合成灯具带的侧开式外部部件配玻璃件的外壳防护等...
Tuesday, September 13, 2022
Wednesday, November 8, 2023
1×15W角灯装配时将弧形有机玻璃罩板用401胶粘到灯框上。...
Wednesday, March 13, 2024
某种灯具,可以使用6个最大功率为40W的白炽灯泡,在标记额定功率时,下面哪种表达是正确的()A、240WB、60WC、6×40WD、6×MAX 40W...
Thursday, April 13, 2023
Monday, April 8, 2024
Thursday, April 25, 2024