high lift safety valve
常见例句
- The safety valve can make the lifting fluid-pressure drive circuit of a fork lift truck or a crane obtain not only high efficiency ascending speed, but also reliable and safe descending speed.
該安全閥使叉車或起重機的起陞液壓敺動廻路既有高傚率的上陞速度，又有可靠的安全下降速度。
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