当反应程度达到60%左右后，由于交联程度增加，分子质量迅速增大，分子间扩散较慢，进入反应的第二阶段，主要由扩散作用控制固化速率。
When the curing extent was about 60 percent, the molecular weight raised rapidly and diffusion control was incorporated to describe the cure in the latter stages.
研究结果表明，土的结构性不但在设计阶段要考虑，同时在施工阶段也要严格控制施工速率，以免引起工程失稳。
The research result show that soils' configuration not only should be considered in stage of design but also in stage of construction, which lest bringing breakage of engineering.
零件变形各阶段的应变速率控制在7475合金的应变速率范围内，证明压力-时间曲线设计合理。
The strain rate of each forming stage is controlled in the range of 7475 alloy's strain rate. This shows the design of pressure-time curve is reasonable.
第一个反应阶段为速率控制步骤。
第二和第三阶段分别是中孔和微孔扩散过程，颗粒内扩散为速率控制步骤。
The second and third fractions were mesopore and micropore diffusion respectively, and the intraparticle diffusion was the control step.
第二和第三阶段分别是中孔和微孔扩散过程，颗粒内扩散为速率控制步骤。
The second and third fractions were mesopore and micropore diffusion respectively, and the intraparticle diffusion was the control step.
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