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信息来自中国地震预警网。在地震发生时提前几秒到几十秒预警，可自主设置预警触发阈值;可及时查看震中位置、预警震级、预估烈度、预警时间等预警信息;可紧急上传求救信息;支持预警科普、查询预警记录。 功能亮点： 1【预警服务】 自2011年起提供地震预警服务，成功预警芦山7级强震、鲁甸6.5级地震、九寨沟7级地震、长宁6级地震、山东平原5.5级地震、甘肃积石山6.2级地震等网内所有破坏性地震，用户收到预警合理避险，减少人员伤亡和次生灾害。 2【预警设置】 支持播报策略设置、触发阈值设置 。 3【灾情上传】 地震后，可上传避险反馈、现场灾情险情，应急部门第一时间获取现场情况，以便精准救援。 4【预警科普】 了解预警声音、地震预警科普、预警案例 【VIP会员服务说明】 1.服务获取：VIP会员服务为收费服务，您可以通过支付相应的服务费用购买。 2.服务期限：您的VIP会员服务的服务期限以您自行选择并支付相应会员费用对应的服务期限为准，自您成为VIP会员之时起算，您可以通过登录地震预警App在“我的”页面进行免费查询。 3.订阅服务与价格： …
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What you can learn from 地震预警-倒计时警报
Every shipping app on the App Store has gone through the same decisions you're working through right now: which screenshot goes first, what caption sits over it, which device frame to show, what color the background should be. The 5 screenshots above are 地震预警-倒计时警报's answers to those questions — they're public, they're real, and they made it through Apple's review.
Notice the first screenshot in particular. It's the one users see in search results and on the product page, and it's where most apps spend their best caption and tightest design. Look at the proportion of background to phone, where the text sits, what one thing the image is trying to communicate.
Want to see how other Utilities apps approach the same problem? Browse more Utilities apps in the showcase.
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