重大修理 meaning in English

repair of a major character

2 while laid up out of commission as provided for in clause 4 below , including lifting or hauling out and launching , while being moved in shipyard or marina , dismantling , fitting out , overhauling , normal maintenance or while under survey ( also to include docking and undocking and periods laid up afloat incidental to laying up or fitting out and with leave to shift in tow or otherwise to or from her lay - up berth but not outside the limits of the port or place in which the vessel is laid up ) but excluding , unless notice be given to the underwriters and any additional premium required by them agreed , any period for which the vessel is used as a houseboat or is under major repair or undergoing alteration
在下述第4条规定的船舶搁置不用，包括起浮或拖带及船舶下水，以及在船舶被移入船坞或游艇停泊港、拆除设备、配置设备、彻底检修、日常保养，或是在船舶接受检验的情况下（也包括进或出船坞、偶尔搁置不用或配置设备而造成的船舶搁置、离开原地去进行救助或基于其他目的，开往其泊位或从泊位离开，但以不离开该船舶被搁置的港口或地点为限），但不包括船舶被用做船宅或船舶正进行重大修理或船舶正在改造的情形，除非承保人得到通知并同意所要额外增加的保险费。