“pull back (PB)”的概念、定义、翻译、参考文献-科学参考

单词	pull back (PB)
释义	pull back (PB) 摄像机后移
随便看	gross production rate gross profit gross profit analysis gross profit margin gross profit method gross profit on sales gross profit percentage gross profit rate gross profit ratio test gross profits gross profit test gross profit variation gross protein value gross purchases gross radioactivity gross rail load on axle gross rainfall gross rate gross rated capacity gross rate of increase of domestic animals gross rating gross receipt gross receipts gross recoverable value of ore gross registered tonnage

科学参考收录了1248194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。