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In Marine Engine, The Difference And Application Of Low Speed Machine And High Speed Machine?

  In   Marine Engine , The Difference And Application Of Low Speed Machine And High Speed Machine? Low speed engines and high speed engines are two common engine classifications in Marine engines, and there are significant differences in their design and application. As an indispensable power source on board, Marine engine is one of the most important parts. Low-speed machines  usually use  diesel engines  as a power source, the speed range is 300-600 RPM, usually directly drive the propeller, with a larger steel material to support the weight of the rotor, so the low-speed machine is larger and heavier than the high-speed machine, but the power is greater. The design of the low-speed machine is more mature, more stable and reliable, and the low-speed machine is more energy efficient than the high-speed machine. Due to the higher efficiency and reliability of low-speed machines, they are usually used in situations that require long continuous operation and high ...

Biggest Chinese Antarctic Fleet Sets Off to Build Research Station

Two Chinese icebreaker research vessels and a cargo ship set sail on Wednesday for the Antarctic with more than 460 personnel on board to help complete construction of China's fifth station on the world's southernmost continent. China's biggest flotilla of research vessels deployed to the Antarctic will focus on building the station on the rocky, windswept Inexpressible Island near the Ross Sea, a deep Southern Ocean bay named after a 19th century British explorer. Work on the first Chinese station in the Pacific sector began in 2018. It will be used to conduct research on the region's environment, state television reported. China has four research stations in the Antarctic built from 1985 to 2014. A U.S.-based think tank estimated the fifth could be finished next year. The facility is expected to include an observatory with a satellite ground station, and should help China "fill in a major gap" in its ability to access the continent, the Center for Strategic...