大数据的主要特征就是三个“大”，具体体现在以下三个方面：一是管理难度大

大数据的主要特征就是三个“大”，具体体现在以下三个方面：一是管理难度大，海量数据的收集、保存、维护、共享及分析研究等都是难度比较大的任务；

結果 (英文) 1:

The main feature is the large data three "big", embodied in the following three aspects: First, difficult to manage, massive data collection, preservation, maintenance, sharing and analysis are all the more difficult task;

結果 (英文) 2:

The main characteristics of large data is three of the "big", embodied in the following three aspects: one is the management difficulty is big, massive data collection, preservation, maintenance, sharing and analysis are difficult tasks;

結果 (英文) 3:

Main features of the data are the three "big", embodied in the following three aspects: one is to manage the difficult, massive data collecting, preserving, maintaining, sharing, analysis and research, are harder than larger tasks;