The two nonstandard longitude zones are visible in Figure 3: zone 32V is extended to cover all of southern Norway, while zone 31V is shrunk so that it covers only open water.
从图3中可看到两个非标准的经度区：32V区被扩展为覆盖整个挪威的南部，而31V 区被缩小，所以只覆盖了一片汪洋大海。
Greenwich thus became established as the location of the prime meridian of longitude, and the base line for calculating time zones around the world.
由此格林威治不仅作为起初子午线的所在地，也成为全球计算时区的基准线。
The basic framework of international time zones is that there is about one hour difference in solar time for every 15 degrees of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
To modern time measure, people divide the surface of the earth into 24 time zones according to longitude lines. This method was established by the International longitude Conference in 1884.
到了近代，将地球表面按经线等分为24个时区，这是由1884年国际经度会议制定的。
The basic framework of international time zones is that there is about one hour difference in solar time for every 15 DE GREes of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
Meridian These are similar to UTM zones. Both apply to large areas based on a line of longitude, both are often left out of field data, and the position is not uniquely defined without them!
子午线与通用横向麦卡托分区相似，同样以一条经线为基础询问大区域，同样通常忽略现场数据，且位置不是绝对的。
Meridian These are similar to UTM zones. Both apply to large areas based on a line of longitude, both are often left out of field data, and the position is not uniquely defined without them!
子午线与通用横向麦卡托分区相似，同样以一条经线为基础询问大区域，同样通常忽略现场数据，且位置不是绝对的。
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