懂英语还有法律的高人ButlerMachineToolCovEx-Cell-OCorp(England)(1979)Theclaimantsofferedtosupplyamachinetooltothedefendantsfor￡75,535.However,thequotationincludedatermwhichwouldentitlethesellerstoincreasethis

　　懂英语还有法律的高人ButlerMachineToolCovEx-Cell-OCorp(England)(1979)

　　Theclaimantsofferedtosupplyamachinetooltothedefendantsfor￡75,535.However,thequotationincludedatermwhichwouldentitlethesellerstoincreasethisprice(price-variationclause).Thedefendantsacceptedtheofferontheirownstandardtermswhichdidnotprovideforanyvariationoftheirquotedprice.Theclaimantsacknowledgedtheorder.Whenthemachinewasdelivered,theclaimantsclaimedanextra￡2,892whichthedefendantsrefusedtopay.TheCourtofAppealheldthatthedefendantshadnotunconditionallyacceptedtheoriginaloffer.Theyhadmadeacourter-offerwhichhadbeenacceptedbytheclaimant.Thedefendants'termsgovernedthecontract.Theclaimants'actiontorecovertheincreaseinprice,therefore,failed.要求：descriptionofthefact；themainlegalissuesandargumentsandthedecisioninthecase,写中文就好了,最好给我翻一下这个案例的意思