Refrigeration system for high-quality full-closed compressor, refrigeration capacity, low noise, high-quality box with a fan device, forced air convection, a more uniform temperature distribution.
制冷系统为优质全封闭压缩机，制冷量大、噪音低，箱内配以优质风机装置，强迫空气对流，温度分布更加均匀。
When the deluge valve installed on the offshore oil and gas production facility fire water system is suddenly closed, the deluge distribution piping will generate water hammer effect.
海上油气生产设施消防喷淋管线，在喷淋阀突然关闭时会产生水锤效应。
The part of the light current mainly including: CATV, Public Broadcasting System, Closed Circuit Monitoring TV and Premises Distribution System and so on.
弱电部分主要内容包括：有线电视、公共广播系统及综合布线系统的设计。
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