sub sample是什么意思

用法例句

Web-based electronic catalogue of mechano-electronic product;

基于Web的机电产品电子样本

Using object orient database software - PowerBuilder, this paper illustrates the design thinking and realization method of tool electronic catalogue system.

应用面向对象数据库软件PowerBuilder，阐述了刀具电子样本系统的设计与实现思想与实现方法。