Фото: Александр Гальперин / РИА Новости
Фото: Пелагия Тихонова / РИА Новости
，详情可参考新收录的资料
Before the Iran war, financial markets had been expecting a cut in UK interest rates at some point this year. But these expectations vanished after the spike in oil prices raised the prospect of higher inflation.。新收录的资料是该领域的重要参考
After a bit of poking, I found what looked to be a textbook quartz crystal resonant curve, but centered at 20 MHz rather than 10. This suggests there’s a divide-by-two in the driver circuit, perhaps to improve the duty cycle to a more perfect 50%. But more importantly, it suggests that neither the crystal itself, nor the electrical connections between it and the package (since I was probing at the package contacts and not the surface of the quartz), were the source of the failure.