“up-down counter”的概念、定义、翻译、参考文献-科学参考

单词	up-down counter
释义	up-down counter 加减计数器升降计数器
随便看	glass pipe lime glass pipette for grafting glass piping glass plate glass-plate capacitor glass plate grid glass plate level gauge glass pocket glass polisher glass polygon glass polyhedron glass porphyry glass pot glass-pot clay glass powder glasspox glass precision scale glass preparation glass press glass pressing blank glass pressing machine glass pressure tube glass printer glass printing glass prism

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。