The Hughes Model 300 is an American three-seat version of the Hughes 269 light helicopter.

美国休斯300型是休斯269型的三座轻型直升机改进型。

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Virtual currencies in mobile games are a huge driving force for popularity of apps, with 35 percent of the top 300 free games in the Apple app Store using in-app purchases as their monetization model.

手机游戏中的虚拟货币是其大众化的巨大推动力，苹果应用商店最受欢迎前300名免费游戏有35%正是以程序内购买作为其货币化模式。

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Geophysicists Valentina Radic and Regine Hock of the University of Alaska base these calculations on a computer model derived from records for more than 300 glaciers between 1961 and 2004.

上述数据是阿拉斯加大学的两位地球物理学家瓦伦蒂娜·拉迪克和丽金·霍克通过电脑模型计算出的，该电脑模型来自1961至2004年期间对300多个冰川的资料记载。

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But in the mezzanine lobby of the site is evidence that more is coming: a model for a 4, 300-acre industrial park and special economic zone (SEZ), the first private one in Pakistan.

FORBES: Magazine Article

At the heart of the new Everio line is a new 2.5-megapixel Back-Illuminated CMOS image sensor that with 2 million effective pixels delivers an outstanding Full HD image and improved low light performance for every model in the 100, 300 and 500 series.

ENGADGET: JVC launches Procision slow-mo HD camcorder, refreshed Everio line at CES

His finished model now can magnify images up to 300 times the size visible to the naked eye.

FORBES: Pakistani Recreates Newton's Telescope