Blue alert issued for NE China sea ice

 　　BEIJING, Jan. 22 (Xinhua) -- Floating ice in northeast China's Liaodong Bay has expanded following a cold snap that has driven sea temperatures down for the last two days, maritime¹ weather forecasters said Tuesday.

　　The National Marine² Environmental Forecasting Center issued a blue alert for the sea ice, stating that the ice's outer edge now measures 72 nautical³ miles in length, an increase of 13 nautical miles from the previous day.

　　The ice has blanketed more than 17,000 square km in the bay, or more than 56 percent of the bay's total area, the center said.

　　The ice may expand further in the days to come, as another cold snap is set to hit China from Wednesday to Thursday, according to the center.

1 maritime   

adj.海的，海事的，航海的，近海的，沿海的

参考例句：

• Many maritime people are fishermen.许多居于海滨的人是渔夫。
• The temperature change in winter is less in maritime areas.冬季沿海的温差较小。

2 marine   

adj.海的；海生的；航海的；海事的；n.水兵

参考例句：

• Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
• When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。

3 nautical   

adj.海上的，航海的，船员的

参考例句：

• A nautical mile is 1,852 meters.一海里等于1852米。
• It is 206 nautical miles from our present location.距离我们现在的位置有206海里。