试验时为了避免转向液压泵安全阀的开启，在试验前，必须将转向液压泵安全阀锁死。
Tests in order to avoid turning the hydraulic pump safety valve open, during the trial before the safety valve must be locked Steering hydraulic pump.
试验时为了避免转向液压泵安全阀的开启，在试验前，必须将转向液压泵安全阀锁死。
Tests in order to avoid turning the hydraulic pump safety valve open, during the trial before the safety valve must be locked Steering hydraulic pump.
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