[电力、热力、燃气及水生产和供应业] [2024-11-28]
• Ultrapure water (UPW) is necessary when fabricating devices in the semiconductor industry. The device fabrication process involves multiple steps, most of which use ultrapure water. For instance, solvent processing, wafer cleaning, chemical mechanical planarization, and wet etching are all processes that rely on ultrapure water. • While many aspects of device manufacturing use ultrapure water, the chemical mechanical planarization process consumes more ultrapure water than most processes. High volumes of ultrapure water are necessary for slurry production that is used in this process.
[电力、热力、燃气及水生产和供应业] [2024-11-28]
Traffic lights are signaling devices placed at intersections of roads, pedestrian crossings, and other sites to control traffic flow. In addition to providing useful information to drivers, these lights lessen the requirement for police presence in traffic control.
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
[电力、热力、燃气及水生产和供应业] [2024-11-21]
8月28日，国家能源局综合司发布关于印发《省(自治区、直辖市)“千乡万村驭风行动”总体方案编制大纲》的通知。
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