求翻译：当气压达到可送汽的压力时，应对分汽缸及送汽管道进行预热，以防管道因温差发生热涨而渗漏或暴管事故；是什么意思？

When the pressure can be sent to the steam pressure to deal with the sub-cylinder and sent to the steam pipe to warm up, to prevent the pipe up due to temperature thermal leakage or pipe bursts accident;

When the vapor pressure can be delivered to cope with stress, sub-cylinder motor pipeline pre-heated, and sent by pipeline to prevent leakage and thermal systems occurred or riot control incidents;

When the barometric pressure achieved when may deliver the steam the pressure, should halve the cylinder and deliver the steam conduit to carry on preheating, because guards against the pipeline the temperature difference to occur rises hotly seeps or the storm tube accident;

When the pressure enough to send steam pressure, cylinder and the steam pipes should be preheated to prevent pipe leak or burst pipe due to temperature difference heat up;

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