The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.
小横杆按照简行计算，大横杆在小横杆的上面。
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We accomplished this by leaving openings, called putlog holes, in the stone at regular intervals.
我们通过定期在石头上留下 putlog 的开口来实现这点。
When the building is finished, the logs and platforms will be removed and the putlog holes filled in with mortar.
建筑完工后，原台将被移除，并用砂浆填充原。
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行
计算，大横杆在小横杆的上面。
putlog 
的开口来实现这
点。
台将被移除，并用砂浆填充原
