叙速了作为预防性养护的稀浆封层对路面强度、稳定度和平整度的要求。并介绍了提高稀浆封层质量应采取的几个措施。
It presents the performance of slurry seal as the preventive maintenance required by the pavement strength, stability and flatness, and provides some measures to improve the seal coat quality.
用三种不同直径的浆态鼓泡塔研究气速、塔径、固相浓度、静止床层高度和气体分布器等对气含率的影响。
The variation of gas holdup with gas velocity, column diameter, solid concentration, static bed height and gas distributor was studied in slurry bubble columns with three different diameters.
本文对速生树的碱性亚钠法制浆作了较为详细的系列研究，确定了用这种制浆法制造可漂白软浆的蒸煮条件。
This paper presents a series of detailed experiment of produced pa per pulp by alkali- salfite process from quick- growing tree, and confirms the steaming condition of produced bleached paper pulp.
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