搜索 - 科创

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铯就是用来计时的啊，微波模块产生微波激发铯，然后根据铯原子跃迁来计时。这个铯是没有放射性的，标签上写着的。既然这样给你翻译一遍好了：The cylinder contains less than 6 ...

WPF死了吗？没有！而且WPF开发组博客仍在持续更新，新功能在持续加入，所以你可以安心地使用WPF。目前，微软在Build2016开发者大会上宣布开始了Project Centennial项目的公测，...

火箭发动机（此楼更新中）感谢@御坂18650 毛妹贡献的57航箭经毛妹测试，使用KNSB燃料可获得800N的推力57外径航箭测绘当时还没用熟soildworks。。emm就用AutoCAD先跑一跑航箭...

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