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。
2
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.