最新研发复级机油，有极佳的清净扩散性。
效率的局部丧失辩证地为体育争议的复级解纷机制带来了积极补偿。
Partial loss of efficiency for the sports disputes dialectically brings a positive compensation for multi-levels system.
对于获取低温的两种手段—双级压缩循环和复叠循环来说，它们分别在不同的温区具有经济性优势。
As two means to get a low temperature, two-stage compression cycle and cascade cycle have their advantages of economical performance in different temperature range.
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