Three days ago, the first drying matter (the one that has been reviewed and released) has been released since the attention of Auntie. This is a “stimulantâ€. It is prepared to bring the cool Mama flame gun PBT cap 87 key V2 tea. Axis mechanical keyboard …
It was reported that Huawei will push the new brand Nova and focus on the female market. Today, this new machine has further arguments. According to the breaking news of the communication expert Feixiang.com on Weibo, Huawei will release a special Nova brand mobile pho…
In the era of mobile Internet, the core technology is mobile communication technology. In the communications industry, the standard dispute is the highest level of discourse. Once the standards are established, they will have a huge impact on the global communications …
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Kick Off the Morning with an Adventure
Day 2 was a day filled with adventurous spirit! Due to the severe typhoon weather, our activities were moved indoors. In the morning, we selected our breakfast through engaging games, getting ready to embark on a memorable …
Since last Friday, the ransomware virus WannaCry has spread wildly around the world, and the old-fashioned places have become hard-hit areas such as hospitals, schools, enterprises and institutions.
In this virus crisis, hackers took advantage of a loophole …
The input op amp of this circuit triggers the timer, sets its flip-flop, cuts off its discharge transistor, and makes capacitor C chargeable. When the capacitor voltage reaches the timer's c…
Color TV system
At present, there are three types of color TV systems in the world: NTSC system, PAL system and SECAM system.
(1) NTSC
The NTSC (NaTIonal Television Systems Committee) color television system is a color television broadcasting st…
Lost orders are often encountered in professional audio project bidding and bidding, and there are various factors for losing. Whether the tender production is standardized, whether the project bidding and bidding are planned and skillful, and whether the project ma…