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经典口香糖：第一次苹果iPod洗牌是14岁_我的网站
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An image of a simulator for J-20 virtual forces training Photo: Screenshot from the military channel of CCTV News
J-20, J-16 and J-10C fighter jets of the Chinese People's Liberation Army (PLA) Air Force now have virtual simulation platforms, enabling air-ground coordinated combat and virtual-real tactical integration, while meeting operational requirements for joint training among the three aircraft types, according to a recent report by Chinese official media.
An expert said on Monday that the digital training model combining virtual and real elements offers significant advantages for military training and could provide data support for the development of AI pilots.
While pilots fly real combat aircraft in the sky, pilots on the ground can also control virtual fighter jets to join the air battle. These virtual aircraft and their operators are referred to as "virtual forces," CCTV News reported.
"Our technology can now achieve full air-ground virtual-real interconnection, allowing us to be bolder in developing and executing tactics on the virtual platform," the report quoted a PLA Air Force pilot as saying.
The digital training model combining virtual and real elements offers significant advantages for military training, Zhang Junshe, a Chinese military affairs expert, told the Global Times on Monday.
One key benefit is cost reduction, according to Zhang. By replacing some actual flight hours with virtual training, the approach cuts fuel consumption, engine wear, component replacement and live ammunition expenditure, significantly lowering overall training costs, Zhang noted.
Training safety is also greatly enhanced. The virtual environment enables low-risk trial and error, allowing pilots to rehearse extreme weather, complex electronic jamming, engine failures, missile attacks and other high-risk scenarios without the danger of casualties or equipment damage.
Resource constraints are another area where the system delivers. With limited numbers of actual aircraft and tight training schedules, new pilots can use the virtual platform to rapidly accumulate simulated flight hours and air combat experience, shortening the conversion and training cycle.
The realism of tactical confrontations is also enhanced, providing a useful environment for the development and testing of new combat tactics.
Moreover, the system supports precise debriefing and data-driven optimization, creating a closed-loop training process, said Zhang.
At the same time, Zhang said, the flight data from real and virtual aircraft, air-ground virtual-real interconnection and comprehensive digitization of flight data could provide rich and high-quality data support for the development of AI pilots, laying a solid foundation for their evolution from rule-driven to data-driven models. AI virtual aircraft could also be introduced into training scenarios.
At the V-Day parade on September 3, 2025, UAVs including new armed reconnaissance drones, wingman drones, air superiority drones and shipborne unmanned helicopters were displayed, all making their debut. They are capable of stealth attacks, wide-area operations and autonomous collaboration, bringing innovative new patterns for future air combat.
。十四年前，苹果的前CEO史蒂夫·乔布斯在旧金山的Mac Work博览会上推出了第一代iPod Suffle。2005年1月11日发布的iPod Shuffle重0.78盎司，完全没有屏幕。它可以随机播放多达240首歌曲（1GB版本）。在这次博览会上，乔布斯称iPod Shuffle“比一包口香糖更小更轻”，512MB版本售价99美元，最多可容纳120首歌曲（1GB版本售价149美元）。对于大多数flash音乐播放器，用户必须使用小屏幕和复杂的控件来查找他们的音乐；使用ipod随机播放，你只需要放松，每次听音乐时，它都会为你提供新的音乐组合，”乔布斯说。与以前的iPod一样，iPod Shuffle可以连接到用户的iTunes帐户，并将下载的音乐同步到媒体播放器。iPod Shuffle还支持自动填充功能，允许您从iTunes中自动选择合适数量的歌曲来填充iPod Shuffle。除了随机播放随机播放的音乐外，用户还可以按设备背面的开关按顺序播放音乐。iPod Shuffle还具有便携式USB闪存驱动器的功能，用户可以在其中存储个人文件，以便在计算机之间传输数据。设备前部提供控制键，如播放/暂停。设备背面有一个电池电源指示灯。
B | 它还可以在随机播放音乐和顺序播放音乐之间切换。
C | iPod Shuffle的底部有一个可拆卸的盖子，里面藏着一个USB插头。
D | 苹果也升级了iPod的随机播放。第二代iPod Shuffle于2006年9月12日首次亮相，其尺寸仅为第一代产品的一半，并配有内置腰带夹。第三代iPod Shuffle于2009年3月11日发布。它恢复了原设备的矩形设计，但介绍了拉丝铝框和画外音功能。设备本身没有播放和音量控制功能，只能由耳机控制。
E | 2010年9月1日发布的第四代iPod Shuffle重新回到了之前的设计，模仿了第二代iPod Shuffle的方形机身，为消费者提供了多种颜色供选择。这是苹果iPod的最后一代洗牌游戏，现在产品线已经不复存在了。从2017年7月27日起，苹果将iPod Shuffle家族从其网站和在线商店中移除。
F | 当时，ipod shuffle已经上市12年半了。
G | 苹果也在同一天停止生产iPod nano，iPod touch成为iPod产品线中唯一剩下的设备。
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