本文研究了不同改性淀粉对纸张干强度的影响。
The paper studies the effect of different modified starches on dry strength.
经过试验，发现该增强剂对纸的干强度有明显的效果。
The dry strength agents have showed the obvious effect to increase the dry strength.
建立了土体抗拉强度和干密度之间的关系。
A relationship between tensile strength and dry unit weight of soils is established.
建立了土体抗拉强度和干密度之间的关系。
A relationship between tensile strength and dry unit weight of soils is established.
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