[0022] 同样的，基金会现场总线指定了一个趋势对象(Trend Object)，这是一个在过程 控制设备上存储最多16 个参数抽样( 例如，对于1 个参数16 个抽样，对于2 个参数中的每
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了解每个对象和整体数据库的增长趋势总是比较好，可以帮助您提前计划磁盘空间需求和数据库调优。
It's always good to know the growth trend of each object and the overall database to help you plan ahead for disk space requirements and database tuning.
WikiCity是一个更广泛的趋势，技术常常被称为' internet of things '，在现实世界中，对象通过无线网络建立连接。
WikiCity is part of a wider trend in technology often referred to as the 'Internet of things', in which real world objects are connected by a wireless network.
如果这种趋势继续，我们需要将大型对象的heap段从20%减低到10%，以留出更多空间给常规处理使用。
If this trend were to continue, we lower the fraction from 20 percent to 10 percent, to allow more space to be used for normal processing.
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