当用户进入表单的其他部分时，再获取底层数据。
As the user goes through other parts of the form, the underlying data can be fetched lazily.
Rails应用程序的模型部分主要是它所使用的底层数据库。
The model part of a Rails application is primarily the underlying database it USES.
系统以ARM微处理器和FIFO存储器为核心，利用可编程逻辑器件实现对整个底层数据采集系统的逻辑控制，并给出了时序控制部分的仿真波形。
The system controls the logic of the data acquisition board by programmable logic device (PLD) with the center of the ARM microcontroller and FIFO memory and provides the simulate waveforms.
对计费网关的核心部分即数据采集部分提出了底层数据采集、缓冲及双缓冲技术。
The collection of bottom data, buffering and double buffering are analyzed in the part of the collection of data that is the kernel of the accounting system.
对计费网关的核心部分即数据采集部分提出了底层数据采集、缓冲及双缓冲技术。
The collection of bottom data, buffering and double buffering are analyzed in the part of the collection of data that is the kernel of the accounting system.
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