Propulsion is made of two high performance diesel engines, to provide power and fuel efficiency.

推进由两个高性能柴油发动机，提供电力和燃油效率。

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These will decrease the propulsion efficiency and increase fuel consumption.

船舶污底引起阻力增加，降低了船舶的推进效率，增加了耗油量。

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Enlightened by the high efficiency and celerity of the fish propulsion in nature, the bionic study of fish propulsion has become a hot topic in the technology of underwater propulsion.

受自然界鱼类推进的快速性和高效性启发，仿鱼推进技术研究已成为水下推进技术研究的热点。

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It has a crew of 20 plus 24 scientists, and features a special hull that diverts bubbles that interfere with sonar operations, and a high-efficiency diesel-electric propulsion system.

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Conventional hybrids use mainly the gasoline engine for propulsion, drawing on the electric drive and batteries only occasionally to (impressively) improve gasoline efficiency.

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