司钻控制台上有一个开关，可用来将平衡液缸 的操作方式由标准平衡状态（DRILL）改变到 立柱上跳（STAND JUMP）位置。有了这种立 柱上跳（STAND JUMP）特点，就可在卸扣时 使用平衡液缸将顶部驱动装置提起来，使其重 量不至于作用在钻柱上。
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high jump stand 跳高架
high jump stand lath 跳高架横竿
PLATING FLUCTUATING HIGH JUMP STAND 电镀升降跳高架
High Jump Stand & Crossbar 跳高架及横竿
It cannot jump, but can stand on its head.
它不能跳跃，但是能够用头来倒立。
If you are shy, you're unlikely to charge what you're worth, to stand up to clients who treat you poorly, to market yourself efficiently or to jump at every opportunity to find new clients.
如果你很害羞，就很难展示自己的价值，很难在态度不好客户面前据理力争，很难把自己有效地“卖出去”，很难把握住每一次机会，很难找到新客户。
You know the feeling that you get, when you stand on a high place, suddenly has to a jump?
你知道你站在高处突然往下跳的感觉吗？
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