The small xx represents the local language, which is a two letter ISO-639 language code and the capital XX represents the local country, which is a two letter ISO-3166 country code.

小写的xx 表示本地语言，它是一个 ISO-639 语言编代码，为两个字母；大写的 XX 表示本地国家，它是一个 ISO-3166 国家代码，为两个字母。

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Using a low ISO setting will help reduce the aberrations that can appear when photographing with long exposures.

当用长曝光拍摄的时候，用一个低的感光度可以减少可能出现的像差。

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The client starts the experiment by connecting to the server and sending a simple HTTP request for a 700mb ISO file.

客户机启动实验，首先与服务器连接并发送一个简单的HTTP请求，请求目的是获取一个700 MB的ISO文件。

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It grants a spot in ISO 3166-1, a directory compiled by the Geneva-based International Standards Organisation.

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Additionally, the D3100's ISO range can expand to a Hi-2 setting of ISO 12, 800, furthering the opportunities for low-light shots that other cameras miss.

ENGADGET: Nikon D3100 gets real, adds 1080p movie mode with continuous autofocus

So... hyperbole aside, the FX30 is thin and features a 3.6x LEICA DC VARIO-ELMARIT optical zoom lens, 7.2 megapixel CCD, Mega OIS optical image stabilization, Venus Engine III image-processing for shooting at ISO 1250, and a 2.5-inch 207k pixel LCD (the L74 throws down 230k pixels) with "Power LCD" to boost brightness by 40% (at the expense of battery life) when outdoors.

ENGADGET: Panasonic's DMC-FX30 wide-angle 7.2 megapixel shooter: not quite the world's slimmest