发现疑似失踪飞机黑匣子信号

 　　PERTH, Australia/KUALA LUMPUR, April 6 (Xinhua) -- Chinese and Australian ships have picked up acoustic¹ signals while searching for missing Malaysia Airlines Flight MH370 in the southern Indian Ocean.

　　The underwater detection represents an "important and encouraging lead," said Angus Houston on Sunday, whose Joint² Agency Coordination³ Center (JACC) is responsible for coordinating⁴ the massive multinational⁵ hunt far west of Australia's coast.

　　However, Houston cautioned that the acoustic events need to be treated carefully as "we are working in a very big ocean and within a very large search area."

　　Possible pings present encouraging lead in MH370 search

　　Chinese vessel⁶ Haixun 01 detected a pulse signal with a frequency of 37.5 kHz -- the same as those emitted by flight recorders -- on Friday in a key search area, and redetected the pings for 90 seconds on Saturday just 2 km away from the original spot.

　　Following the detection, the JACC asked British vessel HMS Echo and Australian ship Ocean Shield, both equipped with black box detectors⁷, to sail to the area and help verify the signals.

　　Meanwhile, Houston said Ocean Shield itself picked up an underwater signal on Sunday some 300 nautical⁸ miles away from the location of Haixun 01, and was investigating the acoustic encounter.

　　The detection of the pings came just days before the batteries of the missing jetliner's black box is expected to expire. The Boeing 777 plane has disappeared for 30 days, and that is how long those batteries normally last.

　　Even if the ill-fated jet was found where Haixun 01 detected the signal, it would be "incredibly challenging and very demanding" as well as time-consuming to recover it, as the water there is about 4.5 km deep, noted⁹ Houston.

　　In parallel with the search, Malaysian authorities are also pressing ahead with investigation¹⁰ in order to find out what really happened to the plane.

　　Citing expert analysis of satellite, radar¹¹ and other data available, they concluded earlier that the ill-fated March 8 flight from Kuala Lumpur to Beijing ended in the southern Indian Ocean.

　　According to previously¹² revealed information, the Boeing 777 aircraft turned back after disappearing from civilian¹³ radar over South China Sea, and was detected by Malaysian military radar in the northern Strait of Malacca before vanishing from all radar screens.

　　After reviewing radar data provided by neighboring countries, investigators¹⁴ have now found that the jetliner curved north of western Indonesia before turning south toward the southern Indian Ocean, U.S. broadcaster CNN on Sunday quoted an unnamed Malaysian official as saying.

　　The latest finding added to the already prevailing¹⁵ assumption that the plane was flown deliberately¹⁶ along a route designed to avoid radar detection. But so far investigators have not ruled out other possible causes of the plane's diversion, such as mechanical problems.

　　It remains¹⁷ unknown who the investigators think might have piloted the aircraft, which carried 239 people on board, including 154 Chinese passengers, after it vanished from radar.

1 acoustic   

adj.听觉的，声音的；(乐器)原声的

参考例句：

• The hall has a fine acoustic.这个大厅的传音效果很好。
• Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。

2 joint   

adj.联合的，共同的；n.关节，接合处；v.连接，贴合

参考例句：

• I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤，肩膀脫臼了。
• We wrote a letter in joint names.我们联名写了封信。

3 coordination   

n.协调，协作

参考例句：

• Gymnastics is a sport that requires a considerable level of coordination.体操是一项需要高协调性的运动。
• The perfect coordination of the dancers and singers added a rhythmic charm to the performance.舞蹈演员和歌手们配合得很好，使演出更具魅力。

4 coordinating   

v.使协调，使调和( coordinate的现在分词 )；协调；协同；成为同等

参考例句：

• He abolished the Operations Coordinating Board and the Planning Board. 他废除了行动协调委员会和计划委员会。 来自辞典例句
• He's coordinating the wedding, and then we're not going to invite him? 他是来协调婚礼的，难道我们不去请他？ 来自电影对白

5 multinational   

adj.多国的，多种国籍的；n.多国籍公司，跨国公司

参考例句：

• The firm was taken over by a multinational consulting firm.这家公司被一个跨国咨询公司收购。
• He analyzed the relationship between multinational corporations and under-developed countries.他分析了跨国公司和不发达国家之间的关系。

6 vessel   

n.船舶；容器，器皿；管，导管，血管

参考例句：

• The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
• You should put the water into a vessel.你应该把水装入容器中。

7 detectors   

探测器( detector的名词复数 )

参考例句：

• The report advocated that all buildings be fitted with smoke detectors. 报告主张所有的建筑物都应安装烟火探测器。
• This is heady wine for experimenters using these neutrino detectors. 对于使用中微子探测器的实验工作者，这是令人兴奋的美酒。 来自英汉非文学 - 科技

8 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。

9 noted   

adj.著名的，知名的

参考例句：

• The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
• Jim is noted for arriving late for work.吉姆上班迟到出了名。

10 investigation   

n.调查，调查研究

参考例句：

• In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
• He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。

11 radar   

n.雷达，无线电探测器

参考例句：

• They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
• Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。

12 previously   

adv.以前，先前（地）

参考例句：

• The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
• Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。

13 civilian   

adj.平民的，民用的，民众的

参考例句：

• There is no reliable information about civilian casualties.关于平民的伤亡还没有确凿的信息。
• He resigned his commission to take up a civilian job.他辞去军职而从事平民工作。

14 investigators   

n.调查者，审查者( investigator的名词复数 )

参考例句：

• This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
• The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》

15 prevailing   

adj.盛行的；占优势的；主要的

参考例句：

• She wears a fashionable hair style prevailing in the city.她的发型是这个城市流行的款式。
• This reflects attitudes and values prevailing in society.这反映了社会上盛行的态度和价值观。

16 deliberately   

adv.审慎地；蓄意地；故意地

参考例句：

• The girl gave the show away deliberately.女孩故意泄露秘密。
• They deliberately shifted off the argument.他们故意回避这个论点。

17 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。