桥梁墩台倾斜下沉应如何抢修？
1）先探明基础底部是否冲空，如发现冲空时，应先将冲空部分填死。用干水泥砂浆装袋由潜水工潜入水底填塞，麻袋间安装扒锯钉使水泥砂浆硬化后结成整体。如未被冲空可在周围抛投片石或码砌石笼至一定高度，以增强墩台的稳定性，然后将钢梁支座顶升到标高，修正、垫实、接通线路
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“Thedignityofmovementofanicebergisduetoonlyone-eighthofitbeingabovewater.”This“iceberg”analogyisputforwardby().
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______ofmeaningisaprocessbywhichawordthatoriginallyhadaspecializedmeaninghasnowbecomegeneralized.
Thesyntacticrulesofanylanguageare______innumber.
