System performance is validated by practical test.

通过实际测试验证了整个系统性能。

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In the aspect of RF circuits, the scheme of frequency synthesizer and modem is proposed, and the feasibility of the scheme is verified by practical test.

在射频电路方面，提出了频率合成器和调制解调器设计方案，并通过测试证明了该方案的可行性。

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This paper provides the method for calculating the axle guiding stiffness acted by resilient axle box guide bars, the accuracy of which has been verified by practical test results.

本文提供轴箱弹性拉杆作用于轮对的定位刚度的计算方法，这种方法的准确度已用实例测试结果加以验证。

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Knowledge about basic maintenance of a car will now be a feature of the practical test set by the Driving Standards Agency.

BBC: L-plate