| 单词 |
photoelectric smoke-density control |
| 释义 |
photoelectric smoke-density control photoelectric smoke-density control[¦fōd·ō·i′lek·trik ′smōk ‚den·səd·ē kən‚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 |
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