Retention: The insulating oxide layers prevent the electrons from leaking out quickly, allowing data to persist for 10+ years under normal conditions. Over time, wear from repeated program/erase cycles (limited to ~1,000-100,000 per cell depending on type) can degrade this insulation, which is why SSDs use wear-leveling algorithms in their controllers to distribute writes evenly.
В документе указывается на резкое падение прибыли, заказов и производства за последний год, что привело и к обрушению капиталовложений. Проблемы коснулись как гражданских предприятий, так и тех, что задействованы в оборонной сфере.
，这一点在PDF资料中也有详细论述
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Since I started using a treadmill at my desk, I’m addicted to walking. The inexpensive treadmill I have now overheats despite a cooling fan we added over the motor, an additional external fan, frequent dusting, and copious amounts of lubrication.