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风机抗震

风力发电机组结构抗震计算程序,根据风机的塔筒高度、质量及塔顶叶轮和机舱质量,估算风机基本自振周期。然后基于修正的底部剪力法计算风机底部剪力和弯矩,具有较好的精度。该方法的优点是只需要很少的输入参数,能够快速计算风机的地震作用,精度能够满足工程要求。免費玩风机抗震 APP玩免費免費玩风机抗震 App风...

Wigo

Embandeiramos essa revolução a partir do WIGO, um Aplicativo mobile, baseado em crowdsourcing que combina meios de Transportes Públicos de nossa cidad...

VCard Holder

Mobile advertising is one of the most exciting new frontiers in interactive advertising in the MALAYSIA. As the In- ternet is reinvented on mobile dev...

intelligentinvest

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