The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.
小横杆按照简支

强度和挠度计算,大横杆在小横杆的上面。
类账
款;
类帐;普通
类帐
类帐;辅助
类帐
类帐
类帐帐户;普通
类帐帐户The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.
小横杆按照简支

强度和挠度计算,大横杆在小横杆的上面。
声明:以上例句、词性
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