...你的自行车和我的不一样 » Your bicycle and I will not be the same as 全部自由度 » All degrees of freedom 您是用信用卡还是现金结算？ » You are using a credit card or cash settlement?
Inexperimentalmodalanalysis, it is necessary tomeasure the response data indirectionsof alldegrees of freedomto obtainthecomplete mode shape information.