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🎥 قسمت پنجاه و سوم - اچ کردن مرطوب شیمیایی: عملکرد پایه

🔺️ Chemical Wet Etching: Basic Function
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🎥 قسمت پنجاه و سوم - اچ کردن مرطوب شیمیایی: عملکرد پایه

🔺️ Chemical Wet Etching: Basic Function
• Duration: 3 minutes

یک فنجان چای با طعم آموزش نانو

در کانال انجمن علمی فناوری نانــو با ما همراه باشید 🌱
| @Nano_Association |

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The next bit isn’t clear, but Durov reportedly claimed that his resignation, dated March 21st, was an April Fools’ prank. TechCrunch implies that it was a matter of principle, but it’s hard to be clear on the wheres, whos and whys. Similarly, on April 17th, the Moscow Times quoted Durov as saying that he quit the company after being pressured to reveal account details about Ukrainians protesting the then-president Viktor Yanukovych. The regulator said it had received information that messages containing stock tips and other investment advice with respect to selected listed companies are being widely circulated through websites and social media platforms such as Telegram, Facebook, WhatsApp and Instagram. On December 23rd, 2020, Pavel Durov posted to his channel that the company would need to start generating revenue. In early 2021, he added that any advertising on the platform would not use user data for targeting, and that it would be focused on “large one-to-many channels.” He pledged that ads would be “non-intrusive” and that most users would simply not notice any change. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. The last couple days have exemplified that uncertainty. On Thursday, news emerged that talks in Turkey between the Russia and Ukraine yielded no positive result. But on Friday, Reuters reported that Russian President Vladimir Putin said there had been some “positive shifts” in talks between the two sides.
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