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 putlog 孔的开口来实现这点。
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，原木将被移除，并用砂浆填充原木孔。
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计算，大横杆在小横杆的上面。
点。
将被移除，并用砂浆填充
