These are expensive, but improve aerodynamics so as to reduce fuel consumption by 3-4%-no bad thing when airlines have been hammered lately by high fuel costs.
尽管价格不菲，但是这将提升空气动力进而减少3%- 4%的燃油消耗-对于被高油价弄得苦不堪言的航空公司而言也不是件坏事。
Zhongyuan new type energy-saving submersible motors are developed for solving such problems as large energy consumption and high lifting costs during the production of the electric pump Wells.
为解决电潜泵井生产过程中能耗大、采油成本高等问题，研制出新型节能潜油电动机。
Zhongyuan new type energy-saving submersible motors are developed for solving such problems as large energy consumption and high lifting costs during the production of the electric pump Wells.
为解决电潜泵井生产过程中能耗大、采油成本高等问题，研制出新型节能潜油电动机。
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