求翻译：为此，开发了一套测试系统，该系统包括数据采集部分和夹具部分。并以此为平台，研究了白车身的刚度特性，并研究白车身弯曲刚度实验研究中加载位置以及预载荷对试验结果的影响。是什么意思？

To this end, developed a test system, the system including data acquisition part and fixture parts. And as a platform to study the stiffness characteristics of the white body and white body bending stiffness of the experimental study of load location and pre-load test results.

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Therefore, has developed a set of test system, this system including data acquisition part and jig part.And take this as the platform, has studied the white automobile body rigidity characteristic, and studies in the white automobile body flexible rigidity experimental study to load the position as

To this end, developed a test system, the system includes data acquisition and fixture parts. And on this platform, we investigate the stiffness of BIW, and research in the experimental study on bending stiffness of BIW load position and effect of preload on test results.

For this reason, test the system after developing one set, this system including data gathers some and jig part. And regard this as the terrace and studied the rigidity characteristic of the white automobile body, and study the loaded position and loaded impact on test result in advance in the crook