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|A sound detected on Monday in the South Atlantic Dexter Fowler Jersey , near where an Argentine navy submarine with 44 crew went missing five days ago, is not believed to have come from the ill-fated vessel, a navy spokesman said.
The sound detected by probes initially raised hopes that crew members aboard the ARA San Juan submarine, which disappeared after reporting an electrical malfunction, may have been intentionally making noise to attract rescuers.
But an analysis by Argentine authorities, on the fourth day of a search-and-rescue mission, showed that it was highly unlikely it had come from the German-built submarine, navy spokesman Enrique Balbi told reporters in Buenos Aires.
"It does not correspond to a pattern that would be consistent with bangs against the walls in morse code," Balbi said. He described whatever had been detected as "a continuous, constant sound."
The disappointment followed another letdown earlier in the day, when the navy said satellite calls detected over the weekend did not in fact come from the vessel. (http:tmsnrt.rs2zQ8HGZ)
The vessel reported an electrical problem and was headed back to its base in the port of Mar del Plata when it disappeared on Wednesday, the navy said. Storms have complicated search efforts as relatives wait anxiously.
More than a dozen boats and aircraft from Argentina, the United States, Britain, Chile and Brazil have joined the search effort. Authorities have mainly been scanning the sea from the sky, as storms have made it difficult for boats.
The navy said on Monday night that two boats belonging to French oil company Total SA, which has offshore operations in Argentina, arrived at the Patagonian port of Comodoro Rivadavia to transport rescue equipment the U.S. Navy brought to the country, including a remote-operated vehicle, a mini-submarine, and a submarine rescue chamber.
Gabriel Galeazzi, a naval commander, told reporters that the submarine had come up from the depths and reported the unspecified electrical malfunction before it disappeared nearly 300 miles off the coast.
"The submarine surfaced and reported a malfunction, which is why its ground command ordered it to return to its naval base at Mar del Plata," he said.
The malfunction did not necessarily cause an emergency, Galeazzi added. The craft was navigating normally, underwater, at a speed of five knots toward Mar del Plata when it was last heard from, he said.
"A warship has a lot of backup systems, to allow it to move from one to another when there is a breakdown," Galeazzi said.
One of the crew is Argentina's first female submarine officer, Eliana Maria Krawczyk, 35, who joined the navy in 2004 and rose to become the master-at-arms aboard the ARA San Juan.
The families of crew members have gathered at the Mar del Plata naval base awaiting news. They were joined on Monday by President Mauricio Macri.
"We continue to deploy all available national and international resources," to find the submarine, Macri said on Twitter.
Intermittent satellite communications were detected on Saturday and the government had said they were likely to have come from the submarine. But the ARA San Juan sent its last signal on Wednesday, according to Balbi.
The calls that were detected "did not correspond to the satellite phone of the submarine San Juan," he said on Monday, adding that the craft had oxygen for seven days. After that, he said, it would have to surface or get near the surface to replenish air supply.
The ARA San Juan was inaugurated in 1983, making it the newest of the three submarines in the navy's fleet. Built in Germany, it underwent maintenance in 2008 in Argentina.
That maintenance included the replacement of its four diesel engines and its electric propeller engines, according to specialist publication Jane's Sentinel.
Chinese Premier Li Keqiang meets with workers who participated in this year's WorldSkills Competition in October and won the most medals and points among 68 countries and regions, in Beijing, capital of China, Nov. 21, 2017. Li Keqiang highlighted the importance of skilled workers and craftsmanship for China to realize quality development. (XinhuaYao Dawei)
BEIJING, Nov. 23 (Xinhua) -- Chinese Premier Li Keqiang has highlighted the importance of skilled workers and craftsmanship for China to realize quality development.
Li made the remarks during a meeting Tuesday with workers who participated in this year's WorldSkills Competition in October and won the most medals and points among 68 countries and regions.
Young skilled workers are "irreplaceable" in pushing manufacturing and service sectors to a higher level and in realizing quality economic development, Li said.
With an average age of less than 21 years, the 52 Chinese participants won 15 gold, seven silver and eight bronze medals.
For the Chinese economy to move toward the medium-high end, workers must first master more sophisticated vocational skills, Li said.
The premier asked workers around the country to perfect their skills to "make extraordinary achievements in ordinary posts."
"It will be good for Chinese brands entering the global arena if youngsters are keen to become craftsmen and pursue excellence," Li said.
Craftsmanship should be reflected in every product and every procedure, and should become "a pillar for building a strong manufacturing nation," he added.
At present, there are 165 million skilled workers in China, but they cannot meet the needs of economic development.
Li said China should deepen reform, improve policy and increase input to build a skilled workforce and solve problems including low pay and narrow career prospects.
Shanghai will host the competition in 2021.
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