中国, 上海关闭 美国, 中环
翻转交叉The meaning of the yellow ribbon
The meaning of the yellow ribbon Represents safe return, acceptance, care and assistance. On October 14, 1971, the New York Post published a novel: A silent man sitting on a long-distance bus finally opened his mouth under the questioning of young tourists…
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The meaning of the purple ribbon
The meaning of the purple ribbon "Purple Ribbon" was initiated by Qingsong Health Care Group. On the eve of the Double Ninth Festival in 2014, the People's Daily "Health Times" and Qingsong Health Care Group jointly hosted the "Qingsong Health Care Building…
What is a ribbon?
What is a ribbon? Ribbon refers to a kind of delicate hand-made ribbon. Ribbons of different colors represent different meanings. Ribbons are strips of flexible material, usually made of cloth, but can also be made of plastic or metal. Ribbons are generally…
Purchase of LED lights
Purchase of LED lights 1. The LED brightness (MCD) is different and the price is different. The LEDs used for LED lamps should meet the laser class I standard. 2. LEDs with strong antistatic ability have long life and high price. Usually LEDs with anti-static…
The advantages of LED lights
The advantages of LED lights 1. High efficiency and energy saving It only consumes a few kWh of electricity for 1,000 hours (ordinary 60W incandescent lamps consume 1 kWh of electricity for 17 hours, and ordinary 10W energy-saving lamps consume 1 kWh…
