日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Submersible sets record for distance

By Zhang Zhihao | China Daily | Updated: 2018-04-24 07:32
Share
Share - WeChat

China's newest ocean craft goes 156.8 kilometers, exceeding goal

Qianlong 3 returns to the mother ship, Dayang Yihao, after its 156-kilometer voyage, which concluded on Sunday. Liu Shiping/Xinhua

China's newest unmanned submersible, Qianlong 3, completed a journey of 156.8 kilometers during its second test dive in the South China Sea recently, setting a national record for the longest voyage by an underwater craft, a scientist said on Monday.

Qianlong 3 began its trip by plunging some 3,850 meters on Saturday. After about 43 hours, on Sunday evening, it finished its journey and was retrieved by crew members aboard the Chinese research vessel Dayang Yihao, Xu Yijun, the craft's deputy chief engineer, told Xinhua News Agency.

The goal was for it to go for at least 30 hours at 2 knots and cover a distance of 60 nautical miles, or 111 km.

"The end test result was great," Xu said.

Qianlong 3's advantages over its predecessors-lower energy use and greater propulsion power-are responsible for the excellent results, he added.

Qianlong 3, which is capable of reaching a depth of 4,500 meters, completed its maiden dive in the South China Sea on Friday. The first dive lasted around nine hours and reached a depth of about 3,900 meters.

Liu Jian, the submersible's chief designer, told Xinhua that the new vehicle will further strengthen China's technological capabilities in deepsea research and development, especially in more complex studies of seabed environments for scientific or mining purposes.

Qianlong 3 is retrieved from its second dive into the sea back to the Chinese research vessel Dayang Yihao, on April 22, 2018. Liu Shiping/Xinhua

Qianlong 3 features designs similar to a clownfish, down to its signature orange and white stripes, big eyes and wavy tail. The submersible is 3.5 meters long, 1.5 meters high and weighs 1.5 metric tons.

The craft is equipped with high-definition cameras and sensors, sonar systems for obstacle evasion, fully rotatable rudders and additional propellers for faster turning.

Unlike its predecessor, Qianlong 2-which has some similar design features and made its maiden dive in 2014-the new submersible is quieter, faster, uses less energy and has more domestically made components, Xu said. As a result, it can collect more data.

Qianlong 2 can operate for 30 hours underwater, but the upgraded submersible has significantly longer endurance, Xu said.

The Qianlong series of underwater vehicles was developed by the Chinese Academy of Sciences' Shenyang Institute of Automation.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 国产精品免费久久久免费 | 精品国产乱码一区二区三 | 91国内外精品自在线播放 | 欧美日韩中文国产一区发布 | 黑人精品 | 久久久久久国产精品免费免费 | 黄免费在线 | 天天干天天操天天舔 | 国产精品九九久久99视频 | 欧美妇人 | 91麻豆国产极品在线观看洋子 | 国产九九免费视频网站 | 午夜婷婷精品午夜无码A片影院 | 毛片毛片毛片毛片毛片毛片 | 日本不卡视频在线观看 | 黄色在线观看国产 | 国产亚洲精品久久久久久久网站 | 人人爱干| 久久久7777888精品 | 精品在线视频一区 | 国产激情一级毛片久久久 | 国产99视频在线 | 亚洲性色成人 | 欧美国产日韩在线 | 草草视频免费观看 | 国产精品第一国产精品 | 亚洲国产一区二区三区四区色欲 | 四虎影 | 毛片a级毛片免费播放100 | 国产黄色一级毛片 | 高清中文字幕视频在线播 | 国产精品久久久久久久网站 | 日韩视频在线一区 | 你下面好大好硬好想要 | 艹逼网| 国产精品国产成人国产三级 | 九九免费在线视频 | 欧美在线观看视频一区 | 国产一区二区三区久久久久久久久 | 狠狠色噜噜狠狠狠狠97影音先锋 | 欧美一区二区在线播放 |