On the basis of studying the chance error occurred in the manufacturing process of plunger pump, the writer puts forward the influence of mechanical error on the flow rate of the crank plunger pumps.
通过研究柱塞泵制造过程中的随机误差，明确提出了机械误差对曲柄柱塞泵流量的影响。
The so-called carbon budget is the total amount of carbon dioxide the world can pump into the atmosphere while still having a chance of stopping short of 2 degrees of global warming.
所谓的“碳预算”是指全球排放到大气中的二氧化碳总量的上限，以保证还有机会将全球变暖的增幅遏制在两摄氏度内。
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