因特殊情况需在到发线警冲标外方进行装卸装卸作业时，须经（）准许。（B、2、Y）[05-00-03-01][020102] ["调车长","货运主任","装卸队长","车站值班员"]
调车作业时超过2.5‰的坡度是指该线有效长内的（）坡度。（B、5、X）[05-00-02-02][020101] ["最大","实际","平均","换算"]
英译中：Double pallet jack
英译中：Dispatching area
列车运行图是铁路（）组织工作的基础。（B、3、Y）[05-00-02-01][020203] ["运输","货运","行车","调车"]
英译中：Double floor stacking
