However, a two-stroke engine USES more gasoline and burns lots of oil, so it is far more polluting.
二冲程发动机使用更多的汽油，燃烧更多的燃料，所以产生更多的污染。
You have to mix oil into the gas in a two-stroke engine because the holes in the cylinder wall prevent the use of rings to seal the combustion chamber.
在二冲程发动机中你必须混和燃料和气体，因为气缸壁上的孔阻止使用活塞环密封燃烧室。
"Great Wall" brand four stroke motorcycle oil obtained JASO quality certificate, and specially formulated to meet the performance requirements of four stroke motorcycle engine.
长城“牌四冲程摩托车发动机油已获得J ASO质量认证，能够满足四冲程摩托车发动机的特殊性能要求。”
The two-stroke motorcycle special engine oil should have low smoke pollution property, good lubricity, detergency, flowing property and mixotropic ability.
对二冲程摩托车油要求有良好的润滑性、排烟性、清净性、流动性和混溶性。
Compositions and features of the base oil used in producing FB two-stroke engine oil were briefly described.
介绍了FB二冲程油基础油的组成和特性，进行了添加剂的筛选和配方研制。
In response to increasingly stringent emissions legislation, the number of four-stroke motorcycle is more and more, so it is necessary to develop the special four-stroke motorcycle engine oil.
随着我国环保法规的日益严格，四冲程摩托车数量越来越多，开发专门的四冲程摩托车油非常必要。
In response to increasingly stringent emissions legislation, the number of four-stroke motorcycle is more and more, so it is necessary to develop the special four-stroke motorcycle engine oil.
随着我国环保法规的日益严格，四冲程摩托车数量越来越多，开发专门的四冲程摩托车油非常必要。
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