Since 2009, the research on methyl ammonium lead-iodide perovskite solar cells has attracted attention and has become a hot spot in international scientific research and industrial fields. In less than eight years, its photoelectric conversion efficiency has
Read moreModel NO.: D9 Color: Customized Hand Made: Not Handmade
Read moreA team of scientists from NASA is working hard to develop a revolutionary space engine. If this rocket that does not require fuel can come true, it will send a big use in the future of Mars (only 10 weeks). ). According to recently released test results, this
Read moreA team of scientists from NASA is working hard to develop a revolutionary space engine. If this rocket that does not require fuel can come true, it will send a big use in the future of Mars (only 10 weeks). ). According to recently released test results, this
Read morePump model on behalf of the structural characteristics of the pump performance and the nature of the medium being transported. Due to the wide variety of pumps, different specifications, so the model is also more turmoil, only a few common pump models are listed here. BA pump single-stage single-su
Read more(2) Pro/ENGINEER automatic relevance and non-Pro/ENGINEER file association. All Pro/ENGINEER data in AINRLINK has a logical relationship. When calling an assembly, all logically related subassemblies and parts and their corresponding drawings are automatically selected, regardless of where the file
Read moreThe “Taiyuan Food Waste Investigation Report and Treatment Countermeasures Research Report†was approved by the Provincial Department of Science and Technology. Preliminary investigations and feasibility studies of relevant projects have started. The report proposes to build a restaur
Read moreSecond, the origin of vibration aging: The vibration aging originated in the European and American countries after World War II. Around the 1950s, with the development of modern science and technology, vibration theory, testing technology and vibration equipment have been rapidly developed. It has
Read moreFigure 3 Frequency of flexibility in the feed direction Overall, the higher the frequency, the stronger the flexibility of a single-edged drill. Since the vibration force of the vibrator is maintained at a constant level, it can be said that the deflection of the drill tool over a large frequency
Read moreFirst, characteristics Alumseal W-2000 is a cyanide-containing zinc sinker that produces a dense and uniform thin layer of heavy zinc on the surface of aluminum alloys, providing a good combination of direct copper plating, nickel plating, and chemical nickel deposition for subsequent processes.
Read moreMud Pump F-500, F-800, F-1000 Slurry Pump (1) Power end (frame, pinion shaft, crankshaft, crosshead, middle rod) 1, Gear transmission. Alloy steel overall crankshaft. Replaceable crosshead guide. The frame welded steel plate, high strength, good rigidity, light weight. The middle rod rod packing wi
Read morePriority Flow Control Regardless of pump speed, working pressure or branch flow required size, the value of a flow control valve can always ensure the required flow of equipment. In this circuit, the pump output flow must be greater than or equal to the required flow of the oil circuit, the seconda
Read more