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.

该安全阀使叉车或起重机的起升液压驱动回路既有高效率的上升速度，又有可靠的安全下降速度。

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Once, after a British Airways flight back from Rome the airport's high-lift truck never turned up at Heathrow, leaving me and my family still stranded onboard a whole hour after everyone else had walked off the plane.

BBC: The perils of flying with a wheelchair

At around 01:45 BST, a fork-lift type truck was driven into Wilkinson's Financial Services Office in High Street, Ruskington and the cash machine was stolen.

BBC: Lincolnshire