signal installations 中文意思是什麼
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Fixed railway installations. fog signal
鐵路固定設備.霧燈指示信號 -
The alternate system allows signal installations along a given length of road to show contrary indications.
交變系統，使一段給定路段上的信號器，展現相反的指示。 -
The paper also designs the vibration signal analysis system composed of sensor, interface installations and the computer
文章提出了振動分析系統的方案設計，並且搭建了用於測量和分析的以傳感器+介面裝置+個人電腦構成的系統。 -
Electrical installations for open - cast mines and quarries - recommendations for winning, stacking and processing machinery, pumps and low signal level and communications systems
露天礦和採石場的電氣裝置.第4部分:開采層疊和處理機械設備泵和低信號級及通信系統推薦標準
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