日期变更线

With only about 200,000 people and a handful of traffic lights in downtown Apia, Samoa is the western neighbor of American Samoa, an American territory.

萨摩亚人口只有约20万，而阿皮亚市中心的交通信号灯也只有寥寥几个。萨摩亚东邻属于美国领土的美属萨摩亚，它因*近国际日期变更线而闻名。

With only about 200,000 people and a handful of traffic lights in downtown Apia, Samoa is the western neighbor of American Samoa, an American territory.

萨摩亚人口只有约20万，而阿皮亚市中心的交通信号灯也只有寥寥几个。萨摩亚东邻属于美国领土的美属萨摩亚，它因靠近国际日期变更线而闻名。

The remote Chatham Islands was the first of more than 100 nations and territories to turn off the power at 8:30 pm local time, in a rolling event around the globe that ends just across the International Dateline in Samoa 24 hours later.

地处偏远的查塔姆群岛是第一个在当地时间8点半开始熄灯的，紧接着，其他国家也相继熄灯，直到24小时后，地处国际日期变更线另一侧的萨摩亚最后一个开始熄灯。

Its nearest neighbors are Nauru to the west and Tuvalu to the south.

地理位置：位于太平洋中部、赤道与国际日期变更线交叉点附近；由3个珊瑚岛群和1个火山岛群组成，这些岛屿散布在500万平方公里的海面上，东西相距3780公里，南北相距2050 公里，西面的瑙鲁，南边的图瓦卢是它的近邻。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。