“oil-well pump”的概念、定义、翻译、参考文献-科学参考

单词	oil-well pump
释义	oil-well pump [`ȯil ´wel ´pǝmp] ^{PETROLEUM ENGINEERING} Device for artificial or secondary (non-gas- lift) oil production; about 85% of the production is by ground-level sucker-rod pumps, the remainder by downhole hydraulic lift pumps.
随便看	second moment of area second-order climatological station second-order difference second-order equation second-order leveling second-order reaction second-order relief second-order station second-order subroutine second-order transition second pilot second quadrant second quantization second radiation constant second-remove subroutine second sound second species seconds pendulum second strike second-strike capability second-time-around echo second-trip echo second water second-year ice secrecy system

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。