中信局採購案

电子网

电子(Electron)是一种带有负电的亚原子粒子,之一。最新实验观测到电子由轨道子,自旋子,空穴子组成。[1]电子带有1/2自旋,是一种费米子。因此,根据泡利不相容原理,任何两个电子都不能处于同样的状态。电子的反粒子是正电子,其质量、自旋、带电量大小都与电子相同,但是带电正负性与电子相反;电子与正...

爱洋葱阅读

爱洋葱阅读是外语教学与研究出版社(外研社)旗下爱洋葱网开发的精品阅读客户端,我们为您提供丰富的双语图书,让您轻松享受阅读和分享的乐趣。主要特色:精品图书爱情、悬疑、侦探、科技、经管、励志等各领域精品图书,图书与专题时时更新,每次开启,都有新的发现。双语对照阅读时您只需将手指轻轻向下一划,即可实现中英...

Photo Redact

Photo Redact is a simple but powerful tool to remove sensitive information from photographs. You can blur or black out parts of a photo. You also can ...

VoiceServe

VoiceServe is a VoIP client for iPhone, iPod Touch and iPad. It works over Wi-Fi, 3G or EDGE. Support for high quality g729 and g722 codecs. Main feat...

Umakov

Scan the barcode in catalogue and get the price for desired product! Universal barcode scanner for products made by Umakov Design. -------------------...