With the increasing of bond strength between soil particles, the initial elastic modulus and peak strength of talus deposit go up at a certain level.

随着土颗粒间黏结强度的提高，堆积体的初始弹性模量和峰值强度都有所提高。

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To ensure that in the initial setting of concrete before the row on the lower bond, so as to safeguard the overall strength of concrete.

保证混凝土在初凝之前，上下层的连续粘接，以保障混凝土的整体强度。

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Polyvinylformal based adhesive for fireworks is introduced. It have advantages of simple technology. high bond strength. good initial tack. thermal stability and freeze resistance.

介绍了一种以聚乙烯醇缩甲醛为主体的烟花胶。它的制造工艺简单，采用此法制造的烟花胶粘接强度高，初粘性、热稳定性、耐冻性能好。

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