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The inner cavity of existing headphones is divided into a front chamber and a rear chamber with the speaker as the dividing line. The front chamber and the rear chamber need to be provided with sou...[Details]

Jiwei.com reported (by reporter Zhang Yiqun) that today, Huawei released its operating results for the first quarter of 2021, with sales revenue of 152.2 billion yuan, a year-on-year decrease of 16.5...[Details]

On the evening of October 22, vivo held a special movie viewing event at the Meiga Cinema in Sanlitun, Beijing. The content shown at the event was not a theater movie, but a 4K short film shot by the...[Details]

Since the birth of mankind, we have been persevering in perceiving, thinking and transforming the world. The emergence of sensors has become the "ears" and "eyes" for mankind to see everything clearl...[Details]

Programmable Controller (PLC) is commonly used in various industries and enterprises. PLC combined with touch screen has the characteristics of simple operation, comfortable and beautiful interface...[Details]

This is related to the programming method inside the network analyzer. Early network analyzers such as the HP8753 series all support a maximum of 1601 frequency points, or 201, 101. Why is there an e...[Details]

Henkel and Schneider Electric join forces to decarbonize supply chains Düsseldorf, Germany – As long-term customer and supplier partners and global leaders in sustainability, Henkel ...[Details]

On the evening of October 14, Tianqi Lithium released its performance forecast, predicting that net profit attributable to the parent company in the first three quarters of 2021 will be 420 million t...[Details]

Humanoid robots, once considered to be "existing only in science fiction movies", are breaking free from the shackles of imagination and moving towards commercial mass production. In thi...[Details]

At GAC Technology Day last night, GAC Group unveiled many "black technologies". In addition to the zero-emission hydrogen fuel cell vehicle, the modular architecture of the two major platforms GPMA a...[Details]

In the early 1980s, Japan's Toshiba Corporation first applied AC speed regulation technology to air conditioners. By 1997, its market share had reached more than 70% of Japan's household air condit...[Details]

1. Experimental phenomenon:   The diodes light up in sequence from right to left.   2. Test Purpose:   l Master the use of registers A and Rn   l Master the left shift instruction   ...[Details]

Industrial parks are important carriers of economic development, but they are also major carbon emitters. The latest data shows that carbon emissions from national and provincial industrial parks a...[Details]

In the battery industry, there is a membrane that is crucial, that is the proton exchange membrane. With the rapid development of hydrogen fuel cells and liquid flow batteries, ion exchange mem...[Details]

STMicroelectronics' HFA80A automotive-scale input Class-D audio amplifier combines high efficiency, small size and low bill of materials cost, and optimizes load diagnostic functions for automotive...[Details]