将这个读数记录为安全阀的开启差压。
Record this as the opening differential pressure of the relief valve.
CIM数据模型提供了两种不同的记录仪表读数的方法：reading和interval - reading。
The CIM data model offered two different ways to record meter readings: reading and interval-reading.
如果每个月记录一次读数，那么没问题；但是对于智能仪表，团队设想应该几分钟测量一次，这意味着数据量会快速增长。
Not a problem if you're recording one reading per month, but with smart meters, the team envisioned reading at intervals measured in minutes, which meant data volumes would mount quickly.
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