Scientists used a super computer called HECToR, based in Edinburgh, to 'zoom in' on the formation of an egg.

科学家们利用一台超级电脑“放大”鸡蛋形成的过程。这台超级电脑名为“HECToR”，放在爱丁堡。

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One part of the code defines whether or not the zip codes should be updated, based on the zoom level of the map.

代码的一部分定义是否应该根据地图的缩放级别更新邮政编码。

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By default, OpenLayers provides mouse wheel-based zoom in and out and mouse-based panning. You can also add on-map controls - for example.

默认地，OpenLayers提供基于鼠标滑轮的缩放以及基于鼠标的平移功能。

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Vector-based graphics based on mathematical lines and points rather than pre-created bitmap graphics, making it quicker to zoom in and out of an area.

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