“circulating sub”的概念、定义、翻译、参考文献-科学参考

单词	circulating sub
释义	circulating sub Encyclopedia 工学测试作业设备释 circulating sub循环阀在测试结束后，可为环空和管柱之间建立循环通道，用于替出管柱中的地层流体和循环压井作业的阀门。
随便看	fertilizer of secondary nutrients fertilizer pollution of fishery environment fertilizer requirement characteristic fertilizer response function fertilizer science fertilizer slowing/controlled release material fertilizer spreader fertilizer synergist fertilizer use efficiency fertilizin ferulic ferulic acid fervent fervorization FES Feschbach resonance FESEM Feshbach resonance FeSiAl合金 FESMAN Feso FESS Festac 77 festival and event tourism Festival Custom of the Sui and Tang Dynasty

科学参考收录了854744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。