蓝鳍-21完成超过80％的水下搜寻工作

With the search for flight MH370 still coming up empty, Chinese and Australian ships in the Indian Ocean will expand their search area over the coming three days.?
搜索航班MH370还是一无所获，中国和澳大利亚的船只在印度洋将在未来三日扩大搜索区域。

The search area, some 1,500 kilometers northwest of the Australian city of Perth, is determined based on pulse signals detected over two weeks ago.
搜索区域在澳大利亚城市珀斯西北1500公里，是基于两个多星期前检测到的脉冲信号来确定。

The pings, which possibly came from the plane's black box, were also used to define a 10-kilometer radius for an underwater search.
疑似来自飞机的黑匣子的ping信号，也被用来定义了一个半径10公里的水下搜索区域

According to the Joint Agency Coordination Center, submersible robot Bluefin-21 has completed more than 80 percent of its mission scanning the ocean floor, but found nothing so far.
根据联合机构协调中心，潜水机器人蓝鳍-21已经完成了超过80％的任务扫描洋底，但至今一无所获

Meanwhile, planes were forced to suspend their search efforts on Tuesday due to poor weather conditions.
同时，飞机被迫暂停在周二的搜索工作,由于恶劣的天气条件。

A tropical cyclone is currently churning the seas and reducing visibility, making any air search activities ineffective and potentially hazardous.?
热带气旋目前正在翻腾大海,能见度降低，使得任何空中搜索活动无效并有潜在的危险