保证了铁路罐车阀类试验数据的准确性，提高了检修质量，从而保障了行车安全，减轻了工人的劳动强度。
It also guarantees the accuracy of experimental data of railroad tank car valves, improves the overhaul quality, and thus ensures the traffic safety and reduces worker's labor intensity.
保证了铁路罐车阀类试验数据的准确性，提高了检修质量，从而保障了行车安全，减轻了工人的劳动强度。
It also guarantees the accuracy of experimental data of railroad tank car valves, improves the overhaul quality, and thus ensures the traffic safety and reduces worker's labor intensity.
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