至此，您已经明白，在参加认证之前要提前收集参考资料和判断应该学什么以及如何学。
You've seen by now that certifying requires some up-front work in gathering resources and making judgments about what and how to study.
他们使用 GPS 定向器，数码相机和其它必要的设备来收集和注册每个参考站点的数据。
They use GPS orientator, digital camera and other necessary appliance to collect and register data of every reference site.
此外，本文还提出了一个实践性的分类方法，用以有效地收集、管理和使用参考体系结构。
In addition, it presents a practical taxonomy for collecting, managing, and using the reference architecture effectively.
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