“photoelectric smoke-density control”的概念、定义、翻译、参考文献-科学参考

单词	photoelectric smoke-density control
释义	photoelectric smoke-density control [¦fōd·ō·i`lek·trik `smōk ´den·sǝd·ē kǝn´trōl] ^{CONTROL SYSTEMS} A photoelectric control system used to measure, indicate, and control the density of smoke in a flue or stack.
随便看	permanent current permanent echo permanent emplacement permanent error permanent extinction permanent fault permanent finish permanent gas permanent hardness permanent ice foot permanent ink permanently convergent series permanent magnet permanent-magnet dynamic loudspeaker permanent-magnet focusing permanent-magnet loudspeaker permanent-magnet moving-coil instrument permanent-magnet moving-iron instrument permanent-magnet stepper motor permanent mold permanent monument permanent press permanent-press resin permanent pump permanent set

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。