“plug back”的概念、定义、翻译、参考文献-科学参考

单词	plug back
释义	plug back [`plǝg ´bak] ^{PETROLEUM ENGINEERING} To place cement or a mechanical plug in a well bottom for the purpose of excluding bottom water, sidetracking, or producing from a formation already drilled through.
随便看	spermatophyte spermatorrhea spermatozoon spermaturia spermidine spermine spermiogenesis sperm nucleus sperm oil sperm whale Sperner set speromagnetic state sperrylite Sperry process spessartite sp gr Sphaeractinoidea Sphaeriales Sphaeriidae Sphaerioidaceae sphaerite Sphaerocarpales Sphaeroceridae Sphaerodoridae Sphaerolaimidae

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。