【簡答題】翻譯：escalator clausethe rate of hire agreed in this charter is based upon the level of owners’ monthly operatingexpenses ruling at the date of this charter as shown in the statement for future comparisonattached hereto, including provisions, stores, master’s and crew’s wages, war bonus and otherremuneration ,maintenance and usual insurance premiums.By the end of every year of the charter period the average monthly expenses for thepreceding year shall be compared with the basic statement attached hereto. Any differenceexceeding 5 per cent , to be multiplied by 12 and regulated in connection with the rata at thetermination of the charter for any part of a year。