“effective diaphragm”的概念、定义、翻译、参考文献-科学参考

单词	effective diaphragm
释义	effective diaphragm 有效光阑
随便看	test and operation group test and training satellite test and verify test and verify program test animal test antenna testa ovi test apparatus test area testas test ascent test assembly test assignment testa trionidis test automation test balloon (风速) test bar test bar (specimen; sample) test base test batch test bay test beam test bed test-bed test bed boat

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。