Vertical leakage-proof technique is critical in vacuum preloading treatment for improving consolidation of soft clay sediment subsoil with deep sand inclusion. 摘要對于深厚夾砂軟土地層進(jìn)行真空預壓加固，側向密封是個(gè)薄弱環(huán)節。
The acidity is too large in the sand inclusion to printing to speed up the ink emulsive spoiledour Teletext Foundation for ink does not balance the staves of water. 而堿性過(guò)大的潤版液則便當腐化印版砂眼，增速油墨乳化，愛(ài)護圖文本原，也會(huì )因火墨不不平衡而引起火杠痕。
