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The rehabilitation or intensified use of Imperata grasslands will require a much better understanding of their area, distribution, and characteristics. We generated estimates of the area of Imperata grasslands in tropical Asia, and suggested a typology of Imperata grasslands that may be useful to define the pathways toward appropriate land use(More)
Fuel injection system noise is an important part of diesel engine mechanical noise. According to each component of fuel injection system working process, each exciting force can be sorted to fluid or mechanical exciting forces and the characteristic of each force is studied. In this paper, 4102 BG diesel engine is used as calculating model. The effects of(More)
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