文章介绍了开发发动机试车数据库的难点和需求，本数据库的结构、功能与特点等。
This article introduces the difficulty and demand of development of test-drive database of engine, and the structure, function and characteristics of this database, etc.
某型发动机试车数据库的开发提高了发动机的试车效率，保证了试车数据的安全性和一致性。
The development of engineering database for aeroengine test has improved the efficiency of aeroengine test and ensured veracity and security of aeroengine test.
本文结合WS9发动机试车数据库，对航空发动机试车数据库的数据挖掘技术应用作了尝试性的研究。
In this paper, data mining techniques were introduced to investigate the test-driving database of WS9 aero-engines.
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