问题标题：
【【急】高分求英语paraphrase（改写）等待高手把下面一段话用自己的话改写.两天内写好的加分!TheprincipleofthependulumwasdiscoveredbyItalianphysicistandastronomerGalileowhosetoutthattheperiodfortheba】
问题描述：
【急】高分求英语paraphrase（改写）
等待高手把下面一段话用自己的话改写.两天内写好的加分!
TheprincipleofthependulumwasdiscoveredbyItalianphysicistandastronomerGalileowhosetoutthattheperiodfortheback-and-forthoscillationofapendulumofagivenlengthremainsthesame,nomatterhowlargeitsarc,oramplitude.Thisphenomenoniscalledisochronism,andGalileonoteditspossibleapplicationsintimekeeping.Becauseoftheroleplayedbygravity,however,theperiodofapendulumisrelatedtogeographicallocation,becausethestrengthofgravityvariesasafunctionoflatitudeandelevation.Forexample,theperiodwillbegreateronamountainthanatsealevel.Thus,thependulumcanbeusedtodetermineaccuratelythelocalaccelerationofgravity.
谈大龙回答：
TheprincipleofthependulumwasdiscoveredbyItalianphysicistandastronomerGalileowhosetoutthattheperiodfortheback-and-forthoscillationofapendulumofagivenlengthremainsthesame...
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