被描述为在规定负荷下，24小时后试样高度变化的百分比。
Change in height of specimen after 24 hours under a specified load.
根据标准规定，负荷试验前后均应检验小型加工中心的几何精度。
According to the standard, the geometric precision of the small machining center should be checked before and after the load test.
施加过负荷电压时，在规定的时间内熔断，对电路起保护作用。
Can be fusible during the stated time for protecting the circuit once wording at the required overload voltage.
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